Hereditary bullous dystrophy, macular type

What it is

A rare X-linked syndromic intellectual disability characterized by intellectual deficit, microcephaly, short stature, and ectodermal anomalies (including alopecia, spontaneous formation of bullae without evident trauma, hyper- or hypopigmented maculae, acrocyanosis, and dystrophic nails) in male patients. Additional reported features are short, tapering fingers, ocular anomalies (such as corneal opacities and cataract), and hypogenitalism. There have been no further descriptions in the literature since 1995.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Neonatal

Inheritance

X-linked recessive

Classified as

Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

ICD-10 codes

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Cross-references