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Items: 13

1.

Hutchinson-Gilford syndrome

Hutchinson-Gilford progeria syndrome (HGPS) is characterized by clinical features that typically develop in childhood and resemble some features of accelerated aging. Children with HGPS usually appear normal at birth. Profound failure to thrive occurs during the first year. Characteristic facial features include head that is disproportionately large for the face, narrow nasal ridge, narrow nasal tip, thin vermilion of the upper and lower lips, small mouth, and retro- and micrognathia. Common features include loss of subcutaneous fat, delayed eruption and loss of primary teeth, abnormal skin with small outpouchings over the abdomen and upper thighs, alopecia, nail dystrophy, coxa valga, and progressive joint contractures. Later findings include low-frequency conductive hearing loss, dental crowding, and partial lack of secondary tooth eruption. Motor and mental development is normal. Death occurs as a result of complications of severe atherosclerosis, either cardiac disease (myocardial infarction or heart failure) or cerebrovascular disease (stroke), generally between ages six and 20 years. Average life span is approximately 14.5 years. [from GeneReviews]

MedGen UID:
46123
Concept ID:
C0033300
Disease or Syndrome
2.

Familial partial lipodystrophy, Dunnigan type

Familial partial lipodystrophy (FPLD) is a metabolic disorder characterized by abnormal subcutaneous adipose tissue distribution beginning in late childhood or early adult life. Affected individuals gradually lose fat from the upper and lower extremities and the gluteal and truncal regions, resulting in a muscular appearance with prominent superficial veins. In some patients, adipose tissue accumulates on the face and neck, causing a double chin, fat neck, or cushingoid appearance. Metabolic abnormalities include insulin-resistant diabetes mellitus with acanthosis nigricans and hypertriglyceridemia; hirsutism and menstrual abnormalities occur infrequently. Familial partial lipodystrophy may also be referred to as lipoatrophic diabetes mellitus, but the essential feature is loss of subcutaneous fat (review by Garg, 2004). The disorder may be misdiagnosed as Cushing disease (see 219080) (Kobberling and Dunnigan, 1986; Garg, 2004). Genetic Heterogeneity of Familial Partial Lipodystrophy Familial partial lipodystrophy is a clinically and genetically heterogeneous disorder. Types 1 and 2 were originally described as clinical subtypes: type 1 (FPLD1; 608600), characterized by loss of subcutaneous fat confined to the limbs (Kobberling et al., 1975), and FPLD2, characterized by loss of subcutaneous fat from the limbs and trunk (Dunnigan et al., 1974; Kobberling and Dunnigan, 1986). No genetic basis for FPLD1 has yet been delineated. FPLD3 (604367) is caused by mutation in the PPARG gene (601487) on chromosome 3p25; FPLD4 (613877) is caused by mutation in the PLIN1 gene (170290) on chromosome 15q26; FPLD5 (615238) is caused by mutation in the CIDEC gene (612120) on chromosome 3p25; FPLD6 (615980) is caused by mutation in the LIPE gene (151750) on chromosome 19q13; FPLD7 (606721) is caused by mutation in the CAV1 gene (601047) on chromosome 7q31; FPLD8 (620679), caused by mutation in the ADRA2A gene (104210) on chromosome 10q25; and FPLD9 (620683), caused by mutation in the PLAAT3 gene (613867) on chromosome 11q12. [from OMIM]

MedGen UID:
354526
Concept ID:
C1720860
Disease or Syndrome
3.

Aortic aneurysm, familial thoracic 6

Any familial thoracic aortic aneurysm and aortic dissection in which the cause of the disease is a mutation in the ACTA2 gene. [from MONDO]

MedGen UID:
435866
Concept ID:
C2673186
Disease or Syndrome
4.

Hypoalphalipoproteinemia, primary, 1

Any ypoalphalipoproteinemia in which the cause of the disease is a mutation in the ABCA1 gene. [from MONDO]

MedGen UID:
1684828
Concept ID:
C5231558
Disease or Syndrome
5.

Hyperlipoproteinemia, type 1D

Hyperlipoproteinemia type ID is a rare autosomal recessive disorder characterized by impaired clearance of triglyceride (TG)-rich lipoproteins in plasma, leading to severe hypertriglyceridemia (chylomicronemia). Clinical features include eruptive xanthomas, lipemia retinalis, hepatosplenomegaly, episodes of abdominal pain, and pancreatitis. Onset usually occurs in adulthood (summary by Brahm and Hegele, 2013). For a discussion of genetic heterogeneity of familial chylomicronemia, see 238600. [from OMIM]

MedGen UID:
863204
Concept ID:
C4014767
Disease or Syndrome
6.

Sitosterolemia 2

Sitosterolemia, also known as phytosterolemia, is an autosomal recessive metabolic condition characterized by unrestricted intestinal absorption of both cholesterol and plant-derived cholesterol-like molecules, such as sitosterol. Patients with this disorder have very high levels of plant sterols in the plasma and develop tendon and tuberous xanthomas, accelerated atherosclerosis, and premature coronary artery disease (summary by Berge et al., 2000). For a general phenotypic description and a discussion of genetic heterogeneity of sitosterolemia, see 210250. [from OMIM]

MedGen UID:
1684715
Concept ID:
C5231453
Disease or Syndrome
7.

Hypoalphalipoproteinemia, primary, 2

Primary hypoalphalipoproteinemia-2 is an autosomal recessive disorder characterized by dysfunctional apoA-I production, resulting in undetectable levels of apoA-I in serum and in markedly low levels of serum high density lipoprotein cholesterol (HDL-C). The disorder is associated with extensive atherosclerosis, xanthomas, and corneal opacities (summary by Tanaka et al., 2018). For a discussion of genetic heterogeneity of primary hypoalphalipoproteinemia, see 604091. [from OMIM]

MedGen UID:
1789263
Concept ID:
C5551172
Disease or Syndrome
8.

Coronary artery disease, autosomal dominant 2

Any coronary artery disease in which the cause of the disease is a mutation in the LRP6 gene. [from MONDO]

MedGen UID:
370259
Concept ID:
C1970440
Disease or Syndrome
9.

Obesity due to CEP19 deficiency

A rare, genetic form of obesity characterized by morbid obesity, hypertension, type 2 diabetes mellitus and dyslipidemia leading to early coronary disease, myocardial infarction and congestive heart failure. Intellectual disability and decreased sperm counts or azoospermia have also been reported. [from ORDO]

MedGen UID:
816654
Concept ID:
C3810324
Disease or Syndrome
10.

Coronary artery disease, autosomal dominant, 1

Coronary artery disease (CAD) and its most important complication, acute myocardial infarction (MI), are leading causes of death and disability in the developed world. Multiple risk factors for CAD/MI have been identified, including family history, hypertension, hypercholesterolemia, obesity, smoking, and diabetes. Several genomewide scans of affected sib pairs have identified susceptibility loci for CAD, e.g., 607339 and 300464. [from OMIM]

MedGen UID:
330802
Concept ID:
C1842247
Disease or Syndrome
11.

Familial apolipoprotein gene cluster deletion syndrome

Apolipoprotein (apo) A-I is the major protein of HDL cholesterol, whereas apoC-III and apoA-IV are minor components. The genes coding for apoA-I, apoC-III, and apoA-IV are adjacent to one another on the long arm of chromosome 11. Familial apolipoprotein gene cluster deletion syndrome has been described in 1 family and found to be a homozygous deletion of the entire APOA1/C3/A4 gene complex. This results in a lack of expression of these plasma lipoproteins, with marked HDL-C deficiency in the homozygote and approximately half-normal levels of these apolipoproteins and HDL-C in the heterozygotes. [from OMIM]

MedGen UID:
1824091
Concept ID:
C5774318
Disease or Syndrome
12.

Moyamoya angiopathy-short stature-facial dysmorphism-hypergonadotropic hypogonadism syndrome

This multisystem disorder is characterized by moyamoya disease, short stature, hypergonadotropic hypogonadism, and facial dysmorphism. Other variable features include dilated cardiomyopathy, premature graying of the hair, and early-onset cataracts. Moyamoya disease is a progressive cerebrovascular disorder characterized by stenosis or occlusion of the internal carotid arteries and the main branches, leading to the development of small collateral vessels (moyamoya vessels) at the base of the brain. Affected individuals can develop acute neurologic events due to stroke-like episodes (summary by Miskinyte et al., 2011). For a general phenotypic description and a discussion of genetic heterogeneity of moyamoya disease, see MYMY1 (252350). [from OMIM]

MedGen UID:
463207
Concept ID:
C3151857
Disease or Syndrome
13.

Premature coronary artery atherosclerosis

Reduction of the diameter of the coronary arteries as the result of an accumulation of atheromatous plaques within the walls of the coronary arteries before age of 45. [from HPO]

MedGen UID:
356830
Concept ID:
C1867743
Disease or Syndrome; Finding

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