Sporadic Fibrodysplasia Ossificans Progressiva in an Egyptian Infant with c.617G > A Mutation inACVR1Gene: A Case Report and Review of Literature

Autor: Yahya Wahba, Nanees Salem, Sohier Yahia, Nermin Ahmad, Bothina Hasaneen, Amany Shams, Rasha H. Hassan, Mohammad Al-Haggar, Dina Abdel-Hady
Rok vydání: 2013
Předmět:
Zdroj: Case Reports in Genetics
Case Reports in Genetics, Vol 2013 (2013)
ISSN: 2090-6552
2090-6544
DOI: 10.1155/2013/834605
Popis: Fibrodysplasia ossificans progressiva (FOP) is an autosomal dominant severe musculoskeletal disease characterized by extensive new bone formation within soft connective tissues and unique skeletal malformations of the big toes which represent a birth hallmark for the disease. Most of the isolated classic cases of FOP showed heterozygous mutation in theACVR1gene on chromosome 2q23 that encodes a bone morphogenetic protein BMP (ALK2). The most common mutation is (c.617G > A) leading to the amino acid substitution of arginine by histidine (p.Arg206His). We currently report on an Egyptian infant with a sporadic classic FOP in whom c.617G > A mutation had been documented. The patient presented with the unique congenital malformation of big toe and radiological evidence of heterotopic ossification in the back muscles. The triggering trauma was related to the infant's head, however; neither neck region nor sites of routine intramuscular vaccination given during the first year showed any ossifications. Characterization of the big toe malformation is detailed to serve as an early diagnostic marker for this rare disabling disease.
Databáze: OpenAIRE