From HPO
Sudden death- MedGen UID:
- 8257
- •Concept ID:
- C0011071
- •
- Pathologic Function
Rapid and unexpected death.
Enuresis- MedGen UID:
- 8649
- •Concept ID:
- C0014394
- •
- Disease or Syndrome
Lack of the ability to control the urinary bladder leading to involuntary urination at an age where control of the bladder should already be possible.
Hypercalciuria- MedGen UID:
- 43775
- •Concept ID:
- C0020438
- •
- Finding
Abnormally high level of calcium in the urine.
Nephrocalcinosis- MedGen UID:
- 10222
- •Concept ID:
- C0027709
- •
- Disease or Syndrome
Nephrocalcinosis is the deposition of calcium salts in renal parenchyma.
Urethral stenosis- MedGen UID:
- 12016
- •Concept ID:
- C0041974
- •
- Finding
Abnormal narrowing of the urethra.
Vesicoureteral reflux- MedGen UID:
- 21852
- •Concept ID:
- C0042580
- •
- Disease or Syndrome
Vesicoureteral reflux (VUR) is characterized by the reflux of urine from the bladder into the ureters and sometimes into the kidneys. It is a risk factor for urinary tract infections. Primary VUR results from a developmental defect of the ureterovesical junction (UVJ). In combination with intrarenal reflux, the resulting inflammatory reaction may result in renal injury or scarring, also called reflux nephropathy (RN). Extensive renal scarring impairs renal function and may predispose patients to hypertension, proteinuria, and renal insufficiency (summary by Lu et al., 2007).
Genetic Heterogeneity of Vesicoureteral Reflux
A locus designated VUR1 maps to chromosome 1p13. VUR2 (610878) is caused by mutation in the ROBO2 gene (602431) on chromosome 3p12; VUR3 (613674) is caused by mutation in the SOX17 gene (610928) on chromosome 8q11; VUR4 (614317) maps to chromosome 5; VUR5 (614318) maps to chromosome 13; VUR6 (614319) maps to chromosome 18; VUR7 (615390) maps to chromosome 12; and VUR8 (615963) is caused by mutation in the TNXB gene (600985) on chromosome 6p21. A possible X-linked form has been reported (VURX; 314550).
Diverticulum of bladder- MedGen UID:
- 57625
- •Concept ID:
- C0156273
- •
- Finding
Diverticulum (sac or pouch) in the wall of the urinary bladder.
Pelvic kidney- MedGen UID:
- 67446
- •Concept ID:
- C0221209
- •
- Congenital Abnormality
A developmental defect in which a kidney is located in an abnormal anatomic position within the pelvis.
Recurrent urinary tract infections- MedGen UID:
- 120466
- •Concept ID:
- C0262655
- •
- Disease or Syndrome
Repeated infections of the urinary tract.
Renal hypoplasia- MedGen UID:
- 120571
- •Concept ID:
- C0266295
- •
- Congenital Abnormality
Hypoplasia of the kidney.
Renal insufficiency- MedGen UID:
- 332529
- •Concept ID:
- C1565489
- •
- Disease or Syndrome
A reduction in the level of performance of the kidneys in areas of function comprising the concentration of urine, removal of wastes, the maintenance of electrolyte balance, homeostasis of blood pressure, and calcium metabolism.
Micropenis- MedGen UID:
- 1633603
- •Concept ID:
- C4551492
- •
- Congenital Abnormality
Abnormally small penis. At birth, the normal penis is about 3 cm (stretched length from pubic tubercle to tip of penis) with micropenis less than 2.0-2.5 cm.
Abnormal renal morphology- MedGen UID:
- 1633142
- •Concept ID:
- C4551596
- •
- Anatomical Abnormality
Any structural anomaly of the kidney.
Hallux valgus- MedGen UID:
- 5416
- •Concept ID:
- C0018536
- •
- Anatomical Abnormality
Lateral deviation of the great toe (i.e., in the direction of the little toe).
Clinodactyly of the 5th finger- MedGen UID:
- 340456
- •Concept ID:
- C1850049
- •
- Congenital Abnormality
Clinodactyly refers to a bending or curvature of the fifth finger in the radial direction (i.e., towards the 4th finger).
Supravalvar aortic stenosis- MedGen UID:
- 2001
- •Concept ID:
- C0003499
- •
- Disease or Syndrome
Supravalvular aortic stenosis (SVAS) is a heart defect that develops before birth. This defect is a narrowing (stenosis) of the large blood vessel that carries blood from the heart to the rest of the body (the aorta). The condition is described as supravalvular because the section of the aorta that is narrowed is located just above the valve that connects the aorta with the heart (the aortic valve). Some people with SVAS also have defects in other blood vessels, most commonly stenosis of the artery from the heart to the lungs (the pulmonary artery). An abnormal heart sound during a heartbeat (heart murmur) can often be heard during a chest exam. If SVAS is not treated, the aortic narrowing can lead to shortness of breath, chest pain, and ultimately heart failure.\n\nThe severity of SVAS varies considerably, even among family members. Some affected individuals die in infancy, while others never experience symptoms of the disorder.
Atrial septal defect- MedGen UID:
- 6753
- •Concept ID:
- C0018817
- •
- Congenital Abnormality
Atrial septal defect (ASD) is a congenital abnormality of the interatrial septum that enables blood flow between the left and right atria via the interatrial septum.
Ventricular septal defect- MedGen UID:
- 42366
- •Concept ID:
- C0018818
- •
- Congenital Abnormality
A hole between the two bottom chambers (ventricles) of the heart. The defect is centered around the most superior aspect of the ventricular septum.
Hypertensive disorder- MedGen UID:
- 6969
- •Concept ID:
- C0020538
- •
- Disease or Syndrome
The presence of chronic increased pressure in the systemic arterial system.
Portal hypertension- MedGen UID:
- 9375
- •Concept ID:
- C0020541
- •
- Disease or Syndrome
Increased pressure in the portal vein.
Mitral regurgitation- MedGen UID:
- 7670
- •Concept ID:
- C0026266
- •
- Disease or Syndrome
An abnormality of the mitral valve characterized by insufficiency or incompetence of the mitral valve resulting in retrograde leaking of blood through the mitral valve upon ventricular contraction.
Mitral valve prolapse- MedGen UID:
- 7671
- •Concept ID:
- C0026267
- •
- Disease or Syndrome
One or both of the leaflets (cusps) of the mitral valve bulges back into the left atrium upon contraction of the left ventricle.
Renal artery stenosis- MedGen UID:
- 19727
- •Concept ID:
- C0035067
- •
- Disease or Syndrome
The presence of stenosis of the renal artery.
Stroke- MedGen UID:
- 52522
- •Concept ID:
- C0038454
- •
- Disease or Syndrome
Sudden impairment of blood flow to a part of the brain due to occlusion or rupture of an artery to the brain.
Bicuspid aortic valve- MedGen UID:
- 57436
- •Concept ID:
- C0149630
- •
- Congenital Abnormality
Bicuspid, or bicommissural, aortic valve (BAV) describes an aortic valve with 2 rather than 3 leaflets (Cripe et al., 2004). In 1 to 2% of the population a bicuspid aortic valve is present. Bicuspid aortic valve is frequently an antecedent to aortic valve stenosis or insufficiency. In extreme cases the blood flow may be so restricted that the left ventricle fails to grow, resulting in hypoplastic left heart syndrome (241550) (Garg et al., 2005). The valve calcification often observed in bicuspid aortic valve is a result of inappropriate activation of osteoblast-specific gene expression. Mutations in the signaling and transcription regulator NOTCH1 cause a spectrum of developmental aortic valve anomalies and severe valve calcification in nonsyndromic autosomal dominant human pedigrees.
Genetic Heterogeneity of Aortic Valve Disease
Also see AOVD2 (614823), caused by mutation in the SMAD6 gene (602931) on chromosome 15q22, and AOVD3 (618496), caused by mutation in the ROBO4 gene (607528) on chromosome 11q24. There is evidence for additional genetic heterogeneity (see MAPPING).
Coronary artery stenosis- MedGen UID:
- 66859
- •Concept ID:
- C0242231
- •
- Disease or Syndrome
Abnormal narrowing of the coronary artery.
Myxomatous mitral valve degeneration- MedGen UID:
- 488811
- •Concept ID:
- C0264885
- •
- Disease or Syndrome
Myxomatous mitral valve is defined as the presence of excess leaflet tissue and leaflet thickening greater than 5 mm, resulting in a prolapse greater than 2 mm into the left atrium on parasternal long axis view.
Peripheral pulmonary artery stenosis- MedGen UID:
- 138014
- •Concept ID:
- C0345030
- •
- Finding
Stenosis of a peripheral branch of the pulmonary artery.
Pulmonic stenosis- MedGen UID:
- 408291
- •Concept ID:
- C1956257
- •
- Disease or Syndrome
A narrowing of the right ventricular outflow tract that can occur at the pulmonary valve (valvular stenosis), below the pulmonary valve (infundibular stenosis), or above the pulmonary valve (supravalvar stenosis).
Fetal growth restriction- MedGen UID:
- 4693
- •Concept ID:
- C0015934
- •
- Pathologic Function
An abnormal restriction of fetal growth with fetal weight below the tenth percentile for gestational age.
Obesity- MedGen UID:
- 18127
- •Concept ID:
- C0028754
- •
- Disease or Syndrome
Accumulation of substantial excess body fat.
Short stature- MedGen UID:
- 87607
- •Concept ID:
- C0349588
- •
- Finding
A height below that which is expected according to age and gender norms. Although there is no universally accepted definition of short stature, many refer to "short stature" as height more than 2 standard deviations below the mean for age and gender (or below the 3rd percentile for age and gender dependent norms).
Failure to thrive in infancy- MedGen UID:
- 358083
- •Concept ID:
- C1867873
- •
- Finding
Constipation- MedGen UID:
- 1101
- •Concept ID:
- C0009806
- •
- Sign or Symptom
Infrequent or difficult evacuation of feces.
Colonic diverticula- MedGen UID:
- 3878
- •Concept ID:
- C0012819
- •
- Disease or Syndrome
The presence of multiple diverticula of the colon.
Rectal prolapse- MedGen UID:
- 11151
- •Concept ID:
- C0034888
- •
- Disease or Syndrome
Protrusion of the rectal mucous membrane through the anus.
Chronic constipation- MedGen UID:
- 98325
- •Concept ID:
- C0401149
- •
- Sign or Symptom
Constipation for longer than three months with fewer than 3 bowel movements per week, straining, lumpy or hard stools, and a sensation of anorectal obstruction or incomplete defecation.
Feeding difficulties in infancy- MedGen UID:
- 436211
- •Concept ID:
- C2674608
- •
- Finding
Impaired feeding performance of an infant as manifested by difficulties such as weak and ineffective sucking, brief bursts of sucking, and falling asleep during sucking. There may be difficulties with chewing or maintaining attention.
Gastroesophageal reflux- MedGen UID:
- 1368658
- •Concept ID:
- C4317146
- •
- Finding
A condition in which the stomach contents leak backwards from the stomach into the esophagus through the lower esophageal sphincter.
Sensorineural hearing loss disorder- MedGen UID:
- 9164
- •Concept ID:
- C0018784
- •
- Disease or Syndrome
A type of hearing impairment in one or both ears related to an abnormal functionality of the cochlear nerve.
Large earlobe- MedGen UID:
- 334979
- •Concept ID:
- C1844573
- •
- Finding
Increased volume of the earlobe, that is, abnormally prominent ear lobules.
Anxiety- MedGen UID:
- 1613
- •Concept ID:
- C0003467
- •
- Finding
Intense feelings of nervousness, tenseness, or panic, often in reaction to interpersonal stresses; worry about the negative effects of past unpleasant experiences and future negative possibilities; feeling fearful, apprehensive, or threatened by uncertainty; fears of falling apart or losing control.
Hyperacusis- MedGen UID:
- 20497
- •Concept ID:
- C0034880
- •
- Sign or Symptom
Over-sensitivity to certain frequency ranges of sound.
Sleep disturbance- MedGen UID:
- 52372
- •Concept ID:
- C0037317
- •
- Sign or Symptom
An abnormality of sleep including such phenomena as 1) insomnia/hypersomnia, 2) non-restorative sleep, 3) sleep schedule disorder, 4) excessive daytime somnolence, 5) sleep apnea, and 6) restlessness.
Hyperreflexia- MedGen UID:
- 57738
- •Concept ID:
- C0151889
- •
- Finding
Hyperreflexia is the presence of hyperactive stretch reflexes of the muscles.
Behavioral abnormality- MedGen UID:
- 535345
- •Concept ID:
- C0233514
- •
- Mental or Behavioral Dysfunction
An abnormality of mental functioning including various affective, behavioural, cognitive and perceptual abnormalities.
Short attention span- MedGen UID:
- 82652
- •Concept ID:
- C0262630
- •
- Finding
Reduced attention span characterized by distractibility and impulsivity but not necessarily satisfying the diagnostic criteria for attention deficit hyperactivity disorder.
Cerebellar hypoplasia- MedGen UID:
- 120578
- •Concept ID:
- C0266470
- •
- Congenital Abnormality
Cerebellar hypoplasia is a descriptive term implying a cerebellum with a reduced volume, but a normal shape and is stable over time.
Incoordination- MedGen UID:
- 141714
- •Concept ID:
- C0520966
- •
- Finding
Poor coordination- MedGen UID:
- 107874
- •Concept ID:
- C0563243
- •
- Finding
Chiari type I malformation- MedGen UID:
- 196689
- •Concept ID:
- C0750929
- •
- Congenital Abnormality
Arnold-Chiari type I malformation refers to a relatively mild degree of herniation of the posteroinferior region of the cerebellum (the cerebellar tonsils) into the cervical canal with little or no displacement of the fourth ventricle. It is characterized by one or both pointed (not rounded) cerebellar tonsils that project 5 mm below the foramen magnum, measured by a line drawn from the basion to the opisthion (McRae Line)
Phonophobia- MedGen UID:
- 155864
- •Concept ID:
- C0751466
- •
- Mental or Behavioral Dysfunction
An abnormally heightened sensitivity to loud sounds.
Attention deficit hyperactivity disorder- MedGen UID:
- 220387
- •Concept ID:
- C1263846
- •
- Mental or Behavioral Dysfunction
Attention deficit-hyperactivity disorder (ADHD) is the most common childhood-onset behavioral disorder, affecting approximately 5 to 10% of children and adolescents (Wolraich et al., 1996). In this condition, persistent inattention and/or hyperactive-impulsive behavior results in impaired social and/or academic functioning. Boys are affected about 8 times more frequently than girls (Zametkin et al., 1990).
Genetic Heterogeneity of Attention Deficit-Hyperactivity Disorder
Susceptibility to ADHD7 (607478) may be conferred by variation in the TPH2 gene (607478) on chromosome 12q21. ADHD8 (619957) is caused by mutation in the CDH2 gene (114020) on chromosome 18q12.
Several loci for susceptibility to ADHD have been mapped, including ADHD1 (608903) on chromosome 16p13, ADHD2 (608904) on chromosome 17p11, ADHD3 (608905) on chromosome 6q12, ADHD4 (608906) on chromosome 5p13, ADHD5 (612311) on 2q21.1, and ADHD6 (612312) on 13q12.11. Also see MOLECULAR GENETICS.
Obsessive-compulsive trait- MedGen UID:
- 322417
- •Concept ID:
- C1834433
- •
- Finding
The presence of one or more obsessive-compulsive personality traits. Obsessions refer to persistent intrusive thoughts, and compulsions to intrusive behaviors, which the affected person experiences as involuntary, senseless, or repugnant.
Gait imbalance- MedGen UID:
- 373028
- •Concept ID:
- C1836150
- •
- Finding
Intellectual disability- MedGen UID:
- 811461
- •Concept ID:
- C3714756
- •
- Mental or Behavioral Dysfunction
Subnormal intellectual functioning which originates during the developmental period. Intellectual disability, previously referred to as mental retardation, has been defined as an IQ score below 70.
Impaired visuospatial constructive cognition- MedGen UID:
- 869275
- •Concept ID:
- C4023701
- •
- Finding
Reduced ability affecting mainly visuospatial cognition which may be tested using pattern construction (for example by Differential Ability Scales, which test a person's strengths and weaknesses across a range of intellectual abilities).
Inguinal hernia- MedGen UID:
- 6817
- •Concept ID:
- C0019294
- •
- Finding
Protrusion of the contents of the abdominal cavity through the inguinal canal.
Umbilical hernia- MedGen UID:
- 9232
- •Concept ID:
- C0019322
- •
- Anatomical Abnormality
Protrusion of abdominal contents through a defect in the abdominal wall musculature around the umbilicus. Skin and subcutaneous tissue overlie the defect.
Hypotonia- MedGen UID:
- 10133
- •Concept ID:
- C0026827
- •
- Finding
Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.
Osteopenia- MedGen UID:
- 18222
- •Concept ID:
- C0029453
- •
- Disease or Syndrome
Osteopenia is a term to define bone density that is not normal but also not as low as osteoporosis. By definition from the World Health Organization osteopenia is defined by bone densitometry as a T score -1 to -2.5.
Osteoporosis- MedGen UID:
- 14535
- •Concept ID:
- C0029456
- •
- Disease or Syndrome
Osteoporosis is a systemic skeletal disease characterized by low bone density and microarchitectural deterioration of bone tissue with a consequent increase in bone fragility. According to the WHO criteria, osteoporosis is defined as a BMD that lies 2.5 standard deviations or more below the average value for young healthy adults (a T-score below -2.5 SD).
Joint laxity- MedGen UID:
- 39439
- •Concept ID:
- C0086437
- •
- Finding
Lack of stability of a joint.
Radioulnar synostosis- MedGen UID:
- 57861
- •Concept ID:
- C0158761
- •
- Congenital Abnormality
There are 2 types of radioulnar synostosis: in type 1, there is a proximal, smooth fusion of 2 to 6 cm between the radius and ulna and the radial head is absent; in type 2, there is a fusion just distal to the proximal radial epiphysis in association with congenital dislocation of the radial head (Bauer and Jonsson, 1988). Both types result in a limitation of pronation and supination of the forearm, and in type 2 there is also a restriction of extension at the elbow. Dominant inheritance through several lines in several generations was demonstrated by a family reported by Davenport et al. (1924). Hansen and Andersen (1970) found a positive family history in 5 of 37 cases.
Radioulnar synostosis is a feature of certain chromosome abnormalities, notably the triple X-Y syndrome (XXXY). See pronation-supination of the forearm, impairment of (176800).
Radioulnar synostosis occurs in an autosomal dominant syndrome with amegakaryocytic thrombocytopenia; see RUSAT1, 605432.
Flexion contracture- MedGen UID:
- 83069
- •Concept ID:
- C0333068
- •
- Anatomical Abnormality
A flexion contracture is a bent (flexed) joint that cannot be straightened actively or passively. It is thus a chronic loss of joint motion due to structural changes in muscle, tendons, ligaments, or skin that prevents normal movement of joints.
Kyphoscoliosis- MedGen UID:
- 154361
- •Concept ID:
- C0575158
- •
- Anatomical Abnormality
An abnormal curvature of the spine in both a coronal (lateral) and sagittal (back-to-front) plane.
Down-sloping shoulders- MedGen UID:
- 346461
- •Concept ID:
- C1856872
- •
- Finding
Low set, steeply sloping shoulders.
Malar flattening- MedGen UID:
- 347616
- •Concept ID:
- C1858085
- •
- Finding
Underdevelopment of the malar prominence of the jugal bone (zygomatic bone in mammals), appreciated in profile, frontal view, and/or by palpation.
Generalized hypotonia- MedGen UID:
- 346841
- •Concept ID:
- C1858120
- •
- Finding
Generalized muscular hypotonia (abnormally low muscle tone).
Pectus excavatum- MedGen UID:
- 781174
- •Concept ID:
- C2051831
- •
- Finding
A defect of the chest wall characterized by a depression of the sternum, giving the chest ("pectus") a caved-in ("excavatum") appearance.
Celiac disease- MedGen UID:
- 3291
- •Concept ID:
- C0007570
- •
- Disease or Syndrome
Celiac disease is a systemic autoimmune disease that can be associated with gastrointestinal findings (diarrhea, malabsorption, abdominal pain and distension, bloating, vomiting, and weight loss) and/or highly variable non-gastrointestinal findings (dermatitis herpetiformis, chronic fatigue, joint pain/inflammation, iron deficiency anemia, migraines, depression, attention-deficit disorder, epilepsy, osteoporosis/osteopenia, infertility and/or recurrent fetal loss, vitamin deficiencies, short stature, failure to thrive, delayed puberty, dental enamel defects, and autoimmune disorders). Classic celiac disease, characterized by mild to severe gastrointestinal symptoms, is less common than non-classic celiac disease, characterized by absence of gastrointestinal symptoms.
Recurrent otitis media- MedGen UID:
- 155436
- •Concept ID:
- C0747085
- •
- Disease or Syndrome
Increased susceptibility to otitis media, as manifested by recurrent episodes of otitis media.
Diabetes mellitus- MedGen UID:
- 8350
- •Concept ID:
- C0011849
- •
- Disease or Syndrome
A group of abnormalities characterized by hyperglycemia and glucose intolerance.
Hypercalcemia- MedGen UID:
- 5686
- •Concept ID:
- C0020437
- •
- Disease or Syndrome
An abnormally increased calcium concentration in the blood.
Food intolerance- MedGen UID:
- 57440
- •Concept ID:
- C0149696
- •
- Finding
A detrimental reaction to a food, beverage, food additive, or compound found in foods that produces symptoms in one or more body organs and systems that is not mediated by an immune reaction.
Glucose intolerance- MedGen UID:
- 75760
- •Concept ID:
- C0271650
- •
- Disease or Syndrome
Glucose intolerance (GI) can be defined as dysglycemia that comprises both prediabetes and diabetes. It includes the conditions of impaired fasting glucose (IFG) and impaired glucose tolerance (IGT) and diabetes mellitus (DM).
Hoarse voice- MedGen UID:
- 5602
- •Concept ID:
- C0019825
- •
- Sign or Symptom
Hoarseness refers to a change in the pitch or quality of the voice, with the voice sounding weak, very breathy, scratchy, or husky.
Vocal cord paralysis- MedGen UID:
- 53047
- •Concept ID:
- C0042928
- •
- Disease or Syndrome
A loss of the ability to move the vocal folds.
Blepharophimosis- MedGen UID:
- 2670
- •Concept ID:
- C0005744
- •
- Congenital Abnormality
A fixed reduction in the vertical distance between the upper and lower eyelids with short palpebral fissures.
Partial congenital absence of teeth- MedGen UID:
- 43794
- •Concept ID:
- C0020608
- •
- Congenital Abnormality
Tooth agenesis in some form is a common human anomaly that affects approximately 20% of the population. Although tooth agenesis is associated with numerous syndromes, several case reports describe nonsyndromic forms that are either sporadic or familial in nature, as reviewed by Gorlin et al. (1990). The incidence of familial tooth agenesis varies with each class of teeth. Most commonly affected are third molars (wisdom teeth), followed by either upper lateral incisors or lower second premolars; agenesis involving first and second molars is very rare. Also see 114600 and 302400.
Selective tooth agenesis without associated systemic disorders has sometimes been divided into 2 types: oligodontia, defined as agenesis of 6 or more permanent teeth, and hypodontia, defined as agenesis of less than 6 teeth. The number in both cases does not include absence of third molars (wisdom teeth). Faulty use of the terms, however, have confounded their use. The term 'partial anodontia' is obsolete (Salinas, 1978).
Genetic Heterogeneity of Selective Tooth Agenesis
Other forms of selective tooth agenesis include STHAG2 (602639), mapped to chromosome 16q12; STHAG3 (604625), caused by mutation in the PAX9 gene (167416) on chromosome 14q12; STHAG4 (150400), caused by mutation in the WNT10A gene (606268) on chromosome 2q35; STHAG5 (610926), mapped to chromosome 10q11; STHAG7 (616724), caused by mutation in the LRP6 gene (603507) on chromosome 12p13; STHAG8 (617073), caused by mutation in the WNT10B gene (601906) on chromosome 12q13; STHAG9 (617275), caused by mutation in the GREM2 gene (608832) on chromosome 1q43; STHAG10 (620173), caused by mutation in the TSPEAR gene (612920) on chromosome 21q22; and STHAGX1 (313500), caused by mutation in the EDA gene (300451) on chromosome Xq13.
A type of selective tooth agenesis that was formerly designated STHAG6 has been incorporated into the dental anomalies and short stature syndrome (DASS; 601216).
Of 34 unrelated patients with nonsyndromic tooth agenesis, van den Boogaard et al. (2012) found that 56% (19 patients) had mutations in the WNT10A gene (STHAG4), whereas only 3% and 9% had mutations in the MSX1 (STHAG1) and PAX9 (STHAG3) genes, respectively. The authors concluded that WNT10A is a major gene in the etiology of isolated hypodontia.
Genotype-Phenotype Correlations
Yu et al. (2016) observed that the most frequently missing permanent teeth in WNT10B-associated oligodontia were the lateral incisors (83.3%), whereas premolars were missing only 51.4% of the time, which they noted was a pattern 'clearly different' from the oligodontia patterns resulting from WNT10A mutations. They also stated that the selective pattern in WNT10B mutants was different from that associated with mutations in other genes, such as MSX1, in which second premolars are missing, and PAX9, in which there is agenesis of molars.
Dental malocclusion- MedGen UID:
- 9869
- •Concept ID:
- C0024636
- •
- Anatomical Abnormality
Dental malocclusion refers to an abnormality of the occlusion, or alignment, of the teeth and the way the upper and lower teeth fit together, resulting in overcrowding of teeth or in abnormal bite patterns.
Microdontia- MedGen UID:
- 66008
- •Concept ID:
- C0240340
- •
- Congenital Abnormality
Decreased size of the teeth, which can be defined as a mesiodistal tooth diameter (width) more than 2 SD below mean. Alternatively, an apparently decreased maximum width of tooth.
Open mouth- MedGen UID:
- 116104
- •Concept ID:
- C0240379
- •
- Finding
A facial appearance characterized by a permanently or nearly permanently opened mouth.
Broad nasal tip- MedGen UID:
- 98424
- •Concept ID:
- C0426429
- •
- Finding
Increase in width of the nasal tip.
Epicanthal fold- MedGen UID:
- 151862
- •Concept ID:
- C0678230
- •
- Congenital Abnormality
Epicanthus is a condition in which a fold of skin stretches from the upper to the lower eyelid, partially covering the inner canthus. Usher (1935) noted that epicanthus is a normal finding in the fetus of all races. Epicanthus also occurs in association with hereditary ptosis (110100).
Depressed nasal bridge- MedGen UID:
- 373112
- •Concept ID:
- C1836542
- •
- Finding
Posterior positioning of the nasal root in relation to the overall facial profile for age.
Thick lower lip vermilion- MedGen UID:
- 326567
- •Concept ID:
- C1839739
- •
- Finding
Increased thickness of the lower lip, leading to a prominent appearance of the lower lip. The height of the vermilion of the lower lip in the midline is more than 2 SD above the mean. Alternatively, an apparently increased height of the vermilion of the lower lip in the frontal view (subjective).
Narrow forehead- MedGen UID:
- 326956
- •Concept ID:
- C1839758
- •
- Finding
Width of the forehead or distance between the frontotemporales is more than two standard deviations below the mean (objective); or apparently narrow intertemporal region (subjective).
Anteverted nares- MedGen UID:
- 326648
- •Concept ID:
- C1840077
- •
- Finding
Anteriorly-facing nostrils viewed with the head in the Frankfurt horizontal and the eyes of the observer level with the eyes of the subject. This gives the appearance of an upturned nose (upturned nasal tip).
Medial flaring of the eyebrow- MedGen UID:
- 336722
- •Concept ID:
- C1844562
- •
- Finding
An abnormal distribution of eyebrow hair growth in the medial direction.
Midface retrusion- MedGen UID:
- 339938
- •Concept ID:
- C1853242
- •
- Anatomical Abnormality
Posterior positions and/or vertical shortening of the infraorbital and perialar regions, or increased concavity of the face and/or reduced nasolabial angle.
Short nose- MedGen UID:
- 343052
- •Concept ID:
- C1854114
- •
- Finding
Distance from nasion to subnasale more than two standard deviations below the mean, or alternatively, an apparently decreased length from the nasal root to the nasal tip.
Long philtrum- MedGen UID:
- 351278
- •Concept ID:
- C1865014
- •
- Finding
Distance between nasal base and midline upper lip vermilion border more than 2 SD above the mean. Alternatively, an apparently increased distance between nasal base and midline upper lip vermilion border.
Full cheeks- MedGen UID:
- 355661
- •Concept ID:
- C1866231
- •
- Finding
Increased prominence or roundness of soft tissues between zygomata and mandible.
Periorbital fullness- MedGen UID:
- 1710990
- •Concept ID:
- C4760994
- •
- Finding
Increase in periorbital soft tissue.
Cutis laxa- MedGen UID:
- 8206
- •Concept ID:
- C0010495
- •
- Disease or Syndrome
Wrinkled, redundant, inelastic and sagging skin.
Premature graying of hair- MedGen UID:
- 75524
- •Concept ID:
- C0263498
- •
- Finding
Development of gray hair at a younger than normal age.
Small nail- MedGen UID:
- 537942
- •Concept ID:
- C0263523
- •
- Finding
A nail that is diminished in length and width, i.e., underdeveloped nail.
Soft skin- MedGen UID:
- 336730
- •Concept ID:
- C1844592
- •
- Finding
Subjective impression of increased softness upon palpation of the skin.
Hypothyroidism- MedGen UID:
- 6991
- •Concept ID:
- C0020676
- •
- Disease or Syndrome
Deficiency of thyroid hormone.
Early onset of sexual maturation- MedGen UID:
- 868001
- •Concept ID:
- C4022392
- •
- Finding
An early onset of puberty, in this case early does not refer to precocious.
Amblyopia- MedGen UID:
- 8009
- •Concept ID:
- C0002418
- •
- Disease or Syndrome
Reduced visual acuity that is uncorrectable by lenses in the absence of detectable anatomic defects in the eye or visual pathways.
Strabismus- MedGen UID:
- 21337
- •Concept ID:
- C0038379
- •
- Disease or Syndrome
A misalignment of the eyes so that the visual axes deviate from bifoveal fixation. The classification of strabismus may be based on a number of features including the relative position of the eyes, whether the deviation is latent or manifest, intermittent or constant, concomitant or otherwise and according to the age of onset and the relevance of any associated refractive error.
Hypotelorism- MedGen UID:
- 96107
- •Concept ID:
- C0424711
- •
- Finding
Interpupillary distance less than 2 SD below the mean (alternatively, the appearance of an decreased interpupillary distance or closely spaced eyes).
Blue irides- MedGen UID:
- 108297
- •Concept ID:
- C0578626
- •
- Finding
A markedly blue coloration of the iris.
Abnormality of refraction- MedGen UID:
- 871349
- •Concept ID:
- C4025843
- •
- Anatomical Abnormality
An abnormality in the process of focusing of light by the eye in order to produce a sharp image on the retina.
Retinal arteriolar tortuosity- MedGen UID:
- 1813053
- •Concept ID:
- CN208740
- •
- Finding
The presence of an increased number of twists and turns of the retinal arterioles.
- Abnormality of head or neck
- Abnormality of limbs
- Abnormality of metabolism/homeostasis
- Abnormality of the cardiovascular system
- Abnormality of the digestive system
- Abnormality of the endocrine system
- Abnormality of the eye
- Abnormality of the genitourinary system
- Abnormality of the immune system
- Abnormality of the integument
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system
- Abnormality of the voice
- Constitutional symptom
- Ear malformation
- Growth abnormality