From HPO
Cryptorchidism- MedGen UID:
- 8192
- •Concept ID:
- C0010417
- •
- Congenital Abnormality
Cryptorchidism, or failure of testicular descent, is a common human congenital abnormality with a multifactorial etiology that likely reflects the involvement of endocrine, environmental, and hereditary factors. Cryptorchidism can result in infertility and increases risk for testicular tumors. Testicular descent from abdomen to scrotum occurs in 2 distinct phases: the transabdominal phase and the inguinoscrotal phase (summary by Gorlov et al., 2002).
Small scrotum- MedGen UID:
- 141577
- •Concept ID:
- C0455792
- •
- Finding
Apparently small scrotum for age.
Hypoplastic labia majora- MedGen UID:
- 107566
- •Concept ID:
- C0566899
- •
- Finding
Undergrowth of the outer labia.
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.
Syndactyly- MedGen UID:
- 52619
- •Concept ID:
- C0039075
- •
- Congenital Abnormality
Webbing or fusion of the fingers or toes, involving soft parts only or including bone structure. Bony fusions are referred to as "bony" syndactyly if the fusion occurs in a radio-ulnar axis. Fusions of bones of the fingers or toes in a proximo-distal axis are referred to as "symphalangism".
Short distal phalanx of finger- MedGen UID:
- 326590
- •Concept ID:
- C1839829
- •
- Finding
Short distance from the end of the finger to the most distal interphalangeal crease or the distal interphalangeal joint flexion point. That is, hypoplasia of one or more of the distal phalanx of finger.
Deep palmar crease- MedGen UID:
- 387849
- •Concept ID:
- C1857539
- •
- Finding
Excessively deep creases of the palm.
Absent distal phalanges- MedGen UID:
- 396111
- •Concept ID:
- C1861339
- •
- Finding
Aplasia (absence) of the distal phalanges.
Aortic aneurysm- MedGen UID:
- 362
- •Concept ID:
- C0003486
- •
- Disease or Syndrome
Aortic dilatation refers to a dimension that is greater than the 95th percentile for the normal person age, sex and body size. In contrast, an aneurysm is defined as a localized dilation of the aorta that is more than 150 percent of predicted (ratio of observed to expected diameter 1.5 or more). Aneurysm should be distinguished from ectasia, which represents a diffuse dilation of the aorta less than 50 percent of normal aorta diameter.
Patent ductus arteriosus- MedGen UID:
- 4415
- •Concept ID:
- C0013274
- •
- Congenital Abnormality
In utero, the ductus arteriosus (DA) serves to divert ventricular output away from the lungs and toward the placenta by connecting the main pulmonary artery to the descending aorta. A patent ductus arteriosus (PDA) in the first 3 days of life is a physiologic shunt in healthy term and preterm newborn infants, and normally is substantially closed within about 24 hours after bith and completely closed after about three weeks. Failure of physiologcal closure is referred to a persistent or patent ductus arteriosus (PDA). Depending on the degree of left-to-right shunting, PDA can have clinical consequences.
Abnormal heart morphology- MedGen UID:
- 6748
- •Concept ID:
- C0018798
- •
- Congenital Abnormality
Any structural anomaly of the heart.
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.
Tricuspid regurgitation- MedGen UID:
- 11911
- •Concept ID:
- C0040961
- •
- Disease or Syndrome
Failure of the tricuspid valve to close sufficiently upon contraction of the right ventricle, causing blood to regurgitate (flow backward) into the right atrium.
Bicuspid aortic valve- MedGen UID:
- 57436
- •Concept ID:
- C0149630
- •
- Congenital Abnormality
Aortic valve disease-2 (AOVD2) is characterized by bicuspid aortic valve (BAV) and dilation of the ascending aorta. Calcification of the valve and the aorta has been observed, and some patients exhibit coarctation of the aorta (Tan et al., 2012; Luyckx et al., 2019; Park et al., 2019).
For a general phenotypic description and a discussion of genetic heterogeneity of aortic valve disease, see AOVD1 (109730).
Left ventricular hypertrophy- MedGen UID:
- 57442
- •Concept ID:
- C0149721
- •
- Disease or Syndrome
Enlargement or increased size of the heart left ventricle.
Pulmonary arterial hypertension- MedGen UID:
- 425404
- •Concept ID:
- C2973725
- •
- Disease or Syndrome
Pulmonary hypertension is defined mean pulmonary artery pressure of 25mmHg or more and pulmonary capillary wedge pressure of 15mmHg or less when measured by right heart catheterisation at rest and in a supine position.
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.
Small for gestational age- MedGen UID:
- 65920
- •Concept ID:
- C0235991
- •
- Finding
Smaller than normal size according to sex and gestational age related norms, defined as a weight below the 10th percentile for the gestational age.
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- MedGen UID:
- 746019
- •Concept ID:
- C2315100
- •
- Disease or Syndrome
Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.
Feeding difficulties- MedGen UID:
- 65429
- •Concept ID:
- C0232466
- •
- Finding
Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it.
Anteriorly placed anus- MedGen UID:
- 333160
- •Concept ID:
- C1838705
- •
- Finding
Anterior malposition of the anus.
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.
Conductive hearing impairment- MedGen UID:
- 9163
- •Concept ID:
- C0018777
- •
- Disease or Syndrome
An abnormality of vibrational conductance of sound to the inner ear leading to impairment of sensory perception of sound.
Low-set ears- MedGen UID:
- 65980
- •Concept ID:
- C0239234
- •
- Congenital Abnormality
Upper insertion of the ear to the scalp below an imaginary horizontal line drawn between the inner canthi of the eye and extending posteriorly to the ear.
Posteriorly rotated ears- MedGen UID:
- 96566
- •Concept ID:
- C0431478
- •
- Congenital Abnormality
A type of abnormal location of the ears in which the position of the ears is characterized by posterior rotation (the superior part of the ears is rotated towards the back of the head, and the inferior part of the ears towards the front).
Hydrocephalus- MedGen UID:
- 9335
- •Concept ID:
- C0020255
- •
- Disease or Syndrome
Hydrocephalus is an active distension of the ventricular system of the brain resulting from inadequate passage of CSF from its point of production within the cerebral ventricles to its point of absorption into the systemic circulation.
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.
Gray matter heterotopia- MedGen UID:
- 452349
- •Concept ID:
- C0266491
- •
- Finding
Heterotopia or neuronal heterotopia are macroscopic clusters of misplaced neurons (gray matter), most often situated along the ventricular walls or within the subcortical white matter.
Hypoplasia of the corpus callosum- MedGen UID:
- 138005
- •Concept ID:
- C0344482
- •
- Congenital Abnormality
Underdevelopment of the corpus callosum.
Cerebellar vermis hypoplasia- MedGen UID:
- 333548
- •Concept ID:
- C1840379
- •
- Finding
Underdevelopment of the vermis of cerebellum.
Periventricular heterotopia- MedGen UID:
- 1766888
- •Concept ID:
- C5399973
- •
- Disease or Syndrome
A form of gray matter heterotopia were the mislocalized gray matter is typically located periventricularly, also sometimes called subependymal heterotopia. Periventricular means beside the ventricles. This is by far the most common location for heterotopia. Subependymal heterotopia present in a wide array of variations. There can be a small single node or a large number of nodes, can exist on either or both sides of the brain at any point along the higher ventricle margins, can be small or large, single or multiple, and can form a small node or a large wavy or curved mass.
Craniosynostosis syndrome- MedGen UID:
- 1163
- •Concept ID:
- C0010278
- •
- Disease or Syndrome
Craniosynostosis refers to the premature closure of the cranial sutures. Primary craniosynostosis refers to the closure of one or more sutures due to abnormalities in skull development, and secondary craniosynostosis results from failure of brain growth.
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.
Micrognathia- MedGen UID:
- 44428
- •Concept ID:
- C0025990
- •
- Congenital Abnormality
Developmental hypoplasia of the mandible.
Retrognathia- MedGen UID:
- 19766
- •Concept ID:
- C0035353
- •
- Congenital Abnormality
An abnormality in which the mandible is mislocalised posteriorly.
Scoliosis- MedGen UID:
- 11348
- •Concept ID:
- C0036439
- •
- Disease or Syndrome
The presence of an abnormal lateral curvature of the spine.
Muscle weakness- MedGen UID:
- 57735
- •Concept ID:
- C0151786
- •
- Finding
Reduced strength of muscles.
Brachycephaly- MedGen UID:
- 113165
- •Concept ID:
- C0221356
- •
- Congenital Abnormality
An abnormality of skull shape characterized by a decreased anterior-posterior diameter. That is, a cephalic index greater than 81%. Alternatively, an apparently shortened anteroposterior dimension (length) of the head compared to width.
Delayed skeletal maturation- MedGen UID:
- 108148
- •Concept ID:
- C0541764
- •
- Finding
A decreased rate of skeletal maturation. Delayed skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body.
Platyspondyly- MedGen UID:
- 335010
- •Concept ID:
- C1844704
- •
- Finding
A flattened vertebral body shape with reduced distance between the vertebral endplates.
Coronal craniosynostosis- MedGen UID:
- 344694
- •Concept ID:
- C1856266
- •
- Congenital Abnormality
Premature closure of the coronal suture of skull.
Reduced subcutaneous adipose tissue- MedGen UID:
- 387876
- •Concept ID:
- C1857657
- •
- Finding
A reduced amount of fat tissue in the lowest layer of the integument. This feature can be appreciated by a reduced skinfold thickness.
Generalized hypotonia- MedGen UID:
- 346841
- •Concept ID:
- C1858120
- •
- Finding
Generalized muscular hypotonia (abnormally low muscle tone).
Wide anterior fontanel- MedGen UID:
- 400926
- •Concept ID:
- C1866134
- •
- Finding
Enlargement of the anterior fontanelle with respect to age-dependent norms.
Hypoplasia of the abdominal wall musculature- MedGen UID:
- 481037
- •Concept ID:
- C3279407
- •
- Finding
Underdevelopment of the abdominal musculature.
Microcephaly- MedGen UID:
- 1644158
- •Concept ID:
- C4551563
- •
- Finding
Head circumference below 2 standard deviations below the mean for age and gender.
Turricephaly- MedGen UID:
- 1726910
- •Concept ID:
- C5399823
- •
- Congenital Abnormality
Tall head relative to width and length.
Pneumothorax- MedGen UID:
- 19365
- •Concept ID:
- C0032326
- •
- Disease or Syndrome
Accumulation of air in the pleural cavity leading to a partially or completely collapsed lung.
Respiratory insufficiency- MedGen UID:
- 11197
- •Concept ID:
- C0035229
- •
- Pathologic Function
Impairment of gas exchange within the lungs secondary to a disease process, neoplasm, or trauma, possibly resulting in hypoxia, hypercarbia, or both, but not requiring intubation or mechanical ventilation. Patients are normally managed with pharmaceutical therapy, supplemental oxygen, or both.
Pulmonary hypoplasia- MedGen UID:
- 78574
- •Concept ID:
- C0265783
- •
- Congenital Abnormality
A congenital abnormality in which the lung parenchyma is not fully developed. It may be associated with other congenital abnormalities.
Recurrent aspiration pneumonia- MedGen UID:
- 152887
- •Concept ID:
- C0747651
- •
- Disease or Syndrome
Increased susceptibility to aspiration pneumonia, defined as pneumonia due to breathing in foreign material, as manifested by a medical history of repeated episodes of aspiration pneumonia.
Narrow mouth- MedGen UID:
- 44435
- •Concept ID:
- C0026034
- •
- Congenital Abnormality
Distance between the commissures of the mouth more than 2 SD below the mean. Alternatively, an apparently decreased width of the oral aperture (subjective).
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.
Convex nasal ridge- MedGen UID:
- 66809
- •Concept ID:
- C0240538
- •
- Finding
Nasal ridge curving anteriorly to an imaginary line that connects the nasal root and tip. The nose appears often also prominent, and the columella low.
Protruding tongue- MedGen UID:
- 66831
- •Concept ID:
- C0241442
- •
- Finding
Tongue extending beyond the alveolar ridges or teeth at rest.
Mandibular prognathia- MedGen UID:
- 98316
- •Concept ID:
- C0399526
- •
- Finding
Abnormal prominence of the chin related to increased length of the mandible.
Downslanted palpebral fissures- MedGen UID:
- 98391
- •Concept ID:
- C0423110
- •
- Finding
The palpebral fissure inclination is more than two standard deviations below the mean.
Short palpebral fissure- MedGen UID:
- 98067
- •Concept ID:
- C0423112
- •
- Finding
Distance between the medial and lateral canthi is more than 2 SD below the mean for age (objective); or, apparently reduced length of the palpebral fissures.
Smooth philtrum- MedGen UID:
- 222980
- •Concept ID:
- C1142533
- •
- Finding
Flat skin surface, with no ridge formation in the central region of the upper lip between the nasal base and upper vermilion border.
Aplastic/hypoplastic lacrimal glands- MedGen UID:
- 320646
- •Concept ID:
- C1835602
- •
- Finding
Absence or underdevelopment of the lacrimal gland.
Triangular face- MedGen UID:
- 324383
- •Concept ID:
- C1835884
- •
- Finding
Facial contour, as viewed from the front, triangular in shape, with breadth at the temples and tapering to a narrow chin.
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.
High, narrow palate- MedGen UID:
- 324787
- •Concept ID:
- C1837404
- •
- Finding
The presence of a high and narrow palate.
Low anterior hairline- MedGen UID:
- 331280
- •Concept ID:
- C1842366
- •
- Finding
Distance between the hairline (trichion) and the glabella (the most prominent point on the frontal bone above the root of the nose), in the midline, more than two SD below the mean. Alternatively, an apparently decreased distance between the hairline and the glabella.
Broad forehead- MedGen UID:
- 338610
- •Concept ID:
- C1849089
- •
- Finding
Width of the forehead or distance between the frontotemporales is more than two standard deviations above the mean (objective); or apparently increased distance between the two sides of the forehead.
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.
Everted lower lip vermilion- MedGen UID:
- 344003
- •Concept ID:
- C1853246
- •
- Finding
An abnormal configuration of the lower lip such that it is turned outward i.e., everted, with the Inner aspect of the lower lip vermilion (normally opposing the teeth) being visible in a frontal view.
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.
Low posterior hairline- MedGen UID:
- 383755
- •Concept ID:
- C1855728
- •
- Finding
Hair on the neck extends more inferiorly than usual.
Sparse scalp hair- MedGen UID:
- 346499
- •Concept ID:
- C1857042
- •
- Finding
Decreased number of hairs per unit area of skin of the scalp.
Underdeveloped supraorbital ridges- MedGen UID:
- 349384
- •Concept ID:
- C1861869
- •
- Congenital Abnormality
Flatness of the supraorbital portion of the frontal bones.
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.
Thin upper lip vermilion- MedGen UID:
- 355352
- •Concept ID:
- C1865017
- •
- Finding
Height of the vermilion of the upper lip in the midline more than 2 SD below the mean. Alternatively, an apparently reduced height of the vermilion of the upper lip in the frontal view (subjective).
Oligodontia- MedGen UID:
- 904670
- •Concept ID:
- C4082304
- •
- Congenital Abnormality
The absence of six or more teeth from the normal series by a failure to develop.
Hypertrichosis- MedGen UID:
- 43787
- •Concept ID:
- C0020555
- •
- Disease or Syndrome
Hypertrichosis is increased hair growth that is abnormal in quantity or location.
Premature skin wrinkling- MedGen UID:
- 19996
- •Concept ID:
- C0037301
- •
- Finding
The presence of an increased degree of wrinkling (irregular folds and indentations) of the skin as compared with age-related norms.
Small nail- MedGen UID:
- 537942
- •Concept ID:
- C0263523
- •
- Finding
A nail that is diminished in length and width, i.e., underdeveloped nail.
Anonychia- MedGen UID:
- 120563
- •Concept ID:
- C0265998
- •
- Congenital Abnormality
Congenital anonychia is defined as the absence of fingernails and toenails. Anonychia and its milder phenotypic variant, hyponychia, usually occur as a feature of genetic syndromes, in association with significant skeletal and limb anomalies. Isolated nonsyndromic congenital anonychia/hyponychia is a rare entity that usually follows autosomal recessive inheritance with variable expression, even within a given family. The nail phenotypes observed range from no nail field to a nail field of reduced size with an absent or rudimentary nail (summary by Bruchle et al., 2008). This form of nail disorder is referred to here as nonsyndromic congenital nail disorder-4 (NDNC4).
For a list of other nonsyndromic congenital nail disorders and a discussion of genetic heterogeneity, see NDNC1 (161050).
Coarse hair- MedGen UID:
- 124454
- •Concept ID:
- C0277959
- •
- Finding
Hair shafts are rough in texture.
Synophrys- MedGen UID:
- 98132
- •Concept ID:
- C0431447
- •
- Congenital Abnormality
Meeting of the medial eyebrows in the midline.
Redundant skin- MedGen UID:
- 154379
- •Concept ID:
- C0581342
- •
- Pathologic Function
Loose and sagging skin often associated with loss of skin elasticity.
Dermal translucency- MedGen UID:
- 373141
- •Concept ID:
- C1836646
- •
- Finding
An abnormally increased ability of the skin to permit light to pass through (translucency) such that subcutaneous structures such as veins display an increased degree of visibility.
Prominent superficial veins- MedGen UID:
- 324870
- •Concept ID:
- C1837785
- •
- Finding
A condition in which superficial veins (i.e., veins just under the skin) are more conspicuous or noticable than normal.
Prematurely aged appearance- MedGen UID:
- 346633
- •Concept ID:
- C1857656
- •
- Finding
Oligohydramnios- MedGen UID:
- 86974
- •Concept ID:
- C0079924
- •
- Pathologic Function
Diminished amniotic fluid volume in pregnancy.
Absent nipple- MedGen UID:
- 64223
- •Concept ID:
- C0175755
- •
- Congenital Abnormality
Congenital failure to develop, and absence of, the nipple.
Hypoplastic nipples- MedGen UID:
- 98156
- •Concept ID:
- C0432355
- •
- Congenital Abnormality
Underdevelopment of the nipple.
Proptosis- MedGen UID:
- 41917
- •Concept ID:
- C0015300
- •
- Disease or Syndrome
An eye that is protruding anterior to the plane of the face to a greater extent than is typical.
Hypermetropia- MedGen UID:
- 43780
- •Concept ID:
- C0020490
- •
- Disease or Syndrome
An abnormality of refraction characterized by the ability to see objects in the distance clearly, while objects nearby appear blurry.
Hypertelorism- MedGen UID:
- 9373
- •Concept ID:
- C0020534
- •
- Finding
Although hypertelorism means an excessive distance between any paired organs (e.g., the nipples), the use of the word has come to be confined to ocular hypertelorism. Hypertelorism occurs as an isolated feature and is also a feature of many syndromes, e.g., Opitz G syndrome (see 300000), Greig cephalopolysyndactyly (175700), and Noonan syndrome (163950) (summary by Cohen et al., 1995).
Microphthalmia- MedGen UID:
- 10033
- •Concept ID:
- C0026010
- •
- Congenital Abnormality
Microphthalmia is an eye abnormality that arises before birth. In this condition, one or both eyeballs are abnormally small. In some affected individuals, the eyeball may appear to be completely missing; however, even in these cases some remaining eye tissue is generally present. Such severe microphthalmia should be distinguished from another condition called anophthalmia, in which no eyeball forms at all. However, the terms anophthalmia and severe microphthalmia are often used interchangeably. Microphthalmia may or may not result in significant vision loss.\n\nPeople with microphthalmia may also have a condition called coloboma. Colobomas are missing pieces of tissue in structures that form the eye. They may appear as notches or gaps in the colored part of the eye called the iris; the retina, which is the specialized light-sensitive tissue that lines the back of the eye; the blood vessel layer under the retina called the choroid; or in the optic nerves, which carry information from the eyes to the brain. Colobomas may be present in one or both eyes and, depending on their size and location, can affect a person's vision.\n\nPeople with microphthalmia may also have other eye abnormalities, including clouding of the lens of the eye (cataract) and a narrowed opening of the eye (narrowed palpebral fissure). Additionally, affected individuals may have an abnormality called microcornea, in which the clear front covering of the eye (cornea) is small and abnormally curved.\n\nBetween one-third and one-half of affected individuals have microphthalmia as part of a syndrome that affects other organs and tissues in the body. These forms of the condition are described as syndromic. When microphthalmia occurs by itself, it is described as nonsyndromic or isolated.
- Abnormality of head or neck
- Abnormality of limbs
- Abnormality of prenatal development or birth
- Abnormality of the breast
- Abnormality of the cardiovascular system
- Abnormality of the digestive 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 respiratory system
- Ear malformation
- Growth abnormality