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Items: 2

1.

Cardiomyopathy, familial hypertrophic, 29, with polyglucosan bodies

Hypertrophic cardiomyopathy-29 (CMH29) is characterized by recurrent syncope, dyspnea on exertion, and palpitations. The clinical phenotype is associated with a poor prognosis due to lethal arrhythmias and cardiac failure. Cardiac muscle biopsies show intermyofibrillar accumulation of glycogen and polyglucosan bodies within cardiomyocytes, and skeletal muscle accumulation of glycogen has also been observed (Hedberg-Oldfors et al., 2019). For a general phenotypic description and discussion of genetic heterogeneity of hypertrophic cardiomyopathy, see CMH1 (192600). [from OMIM]

MedGen UID:
1824081
Concept ID:
C5774308
Disease or Syndrome
2.

Epidermolysis bullosa simplex 6, generalized, with scarring and hair loss

Epidermolysis bullosa simplex (EBS) is characterized by fragility of the skin (and mucosal epithelia in some instances) that results in non-scarring blisters and erosions caused by minor mechanical trauma. EBS is distinguished from other types of epidermolysis bullosa (EB) or non-EB skin fragility syndromes by the location of the blistering in relation to the dermal-epidermal junction. In EBS, blistering occurs within basal keratinocytes. The severity of blistering ranges from limited to hands and feet to widespread involvement. Additional features can include hyperkeratosis of the palms and soles (keratoderma), nail dystrophy, milia, and hyper- and/or hypopigmentation. Rare EBS subtypes have been associated with additional clinical features including pyloric atresia, muscular dystrophy, cardiomyopathy, and/or nephropathy. [from GeneReviews]

MedGen UID:
934598
Concept ID:
C4310631
Disease or Syndrome

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