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Items: 5

1.

Werner syndrome

Werner syndrome is characterized by the premature appearance of features associated with normal aging and cancer predisposition. Individuals with Werner syndrome develop normally until the end of the first decade. The first sign is the lack of a growth spurt during the early teen years. Early findings (usually observed in the 20s) include loss and graying of hair, hoarseness, and scleroderma-like skin changes, followed by bilateral ocular cataracts, type 2 diabetes mellitus, hypogonadism, skin ulcers, and osteoporosis in the 30s. Myocardial infarction and cancer are the most common causes of death; the mean age of death in individuals with Werner syndrome is 54 years. [from GeneReviews]

MedGen UID:
12147
Concept ID:
C0043119
Disease or Syndrome
2.

Tumoral calcinosis, hyperphosphatemic, familial, 2

Hyperphosphatemic familial tumoral calcinosis is a rare autosomal recessive metabolic disorder characterized by the progressive deposition of basic calcium phosphate crystals in periarticular spaces, soft tissues, and sometimes bone (Chefetz et al., 2005). The biochemical hallmark of tumoral calcinosis is hyperphosphatemia caused by increased renal absorption of phosphate due to loss-of-function mutations in the FGF23 or GALNT3 (601756) gene. The term 'hyperostosis-hyperphosphatemia syndrome' is sometimes used when the disorder is characterized by involvement of the long bones associated with the radiographic findings of periosteal reaction and cortical hyperostosis. Although some have distinguished HHS from FTC by the presence of bone involvement and the absence of skin involvement (Frishberg et al., 2005), Ichikawa et al. (2010) concluded that the 2 entities represent a continuous spectrum of the same disease, best described as familial hyperphosphatemic tumoral calcinosis. HFTC is considered to be the clinical converse of autosomal dominant hypophosphatemic rickets (ADHR; 193100), an allelic disorder caused by gain-of-function mutations in the FGF23 gene and associated with hypophosphatemia and decreased renal phosphate absorption (Chefetz et al., 2005; Ichikawa et al., 2005). For a general phenotypic description and a discussion of genetic heterogeneity of HFTC, see 211900. [from OMIM]

MedGen UID:
1640532
Concept ID:
C4693863
Disease or Syndrome
3.

Hereditary sclerosing poikiloderma

A rare genetic skin disease characterized by generalized poikiloderma with marked accentuation in flexural regions and on extensor surfaces, sclerosis of palms and soles, and linear and reticulated hyperkeratotic and sclerotic bands in the axilla and the antecubital and popliteal fossae. Subcutaneous calcification, finger clubbing, Raynaud phenomenon, and cardiac abnormalities (such as severe aortic stenosis) have also been reported. [from ORDO]

MedGen UID:
91006
Concept ID:
C0343094
Congenital Abnormality
4.

Deafness, cataract, impaired intellectual development, and polyneuropathy

Deafness, cataract, impaired intellectual development, and polyneuropathy (DCIDP) is characterized by early-onset of deafness, cataract, severe developmental delay, and severely impaired intellectual development. Patients later develop polyneuropathy of the lower extremities, associated with depigmentation of the hair in that area (Kroll-Hermi et al., 2020). [from OMIM]

MedGen UID:
1781637
Concept ID:
C5543482
Disease or Syndrome
5.

Subcutaneous calcification

Deposition of calcium salts in subcutaneous tissue (i.e., the the lowermost layer of the integument). [from HPO]

MedGen UID:
120484
Concept ID:
C0263625
Disease or Syndrome
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