Weyers acrofacial dysostosis Overview Weyers acrofacial dysostosis (WAD), or Curry-Hall syndrome, is a rare autosomal dominant skeletal dysplasia characterized by postaxial polydactyly (extra fingers/toes), nail dystrophy, dental anomalies (small/conical teeth), and mild short stature. It is caused by mutations in the EVC2 gene and is generally a milder, non-lethal form of Ellis-van Creveld syndrome, usually without heart defects Symptoms Limb Anomalies : Postaxial polydactyly (extra digits on the hands or feet, usually on the pinky side) and fusion of the 5th and 6th metacarpals/metatarsals. Dental Anomalies : Hypodontia (fewer teeth than normal), microdontia (small teeth), peg-shaped or conical teeth, and single central incisors. Nail Dystrophy : Abnormally small, brittle, or malformed fingernails and toenails (onychodystrophy). Facial Features: Micrognathia (small lower jaw/mandible), small mouth, and abnormal dentation. Growth: Mildly short stature (often around the 5th percentile...
Peeling skin syndrome 2 (PSS2) Overview Peeling skin syndrome 2 (PSS2), also known as Acral Peeling Skin Syndrome (APSS), is a rare, inherited skin disorder characterized by painless, continuous exfoliation of the top layer of skin, particularly on the hands and feet. It is caused by genetic mutations, often in the \(TGM5\) gene, and is often worsened by heat, humidity, and moisture. Symptoms Localized Peeling: Primary, ongoing exfoliation of the skin on the palms of the hands and soles of the feet, occasionally extending to the arms and legs. Painless Exfoliation: The skin peels off in sheets or patches, often without pain, itching, or redness, although it can be temporarily red and itchy (erythema). Triggered by Moisture: Skin shedding is accelerated by humidity, sweating, and heat. No Scarring: Despite the constant peeling, the skin underneath usually heals without scarring. Onset Timing: Symptoms frequently appear at birth or in early childhood, although they may appear later ...