Split-hand/foot malformation (SHFM) / Ectrodactyly
from OrphaChat — a Rare Disease Podcast Hosted by RCH
Split-hand/foot malformation (SHFM), also known as ectrodactyly, is a rare congenital condition defined by significant limb irregularities, such as median clefts and the absence of central digits. These sources examine the complex genetic etiology of the disorder, identifying various loci and mutations in genes like TP63, WNT10B, and EPS15L1 that disrupt essential embryonic limb patterning. Researchers categorise the condition into syndromic forms, which involve additional anomalies like hearing loss, and isolated forms that only affect the extremities. Diagnosis often relies on clinical evaluation and advanced genomic sequencing to identify specific inheritance patterns, which can be autosomal dominant, recessive, or X-linked. Clinical management focuses on a multidisciplinary approach, combining reconstructive surgery with occupational therapy to improve a child's functional independence and self-esteem. Furthermore, the texts highlight the importance of familial support and genetic counselling to navigate the psychological impact and variable expressivity of these physical differences.
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