Hirschsprung disease-deafness-polydactyly syndrome

Hirschsprung disease-deafness-polydactyly syndrome is an extremely rare congenital disorder characterized by the combination of three cardinal features: Hirschsprung disease (aganglionic megacolon), sensorineural deafness, and polydactyly (extra fingers or toes). Hirschsprung disease involves the absence of nerve cells (ganglion cells) in segments of the bowel, leading to severe constipation, bowel obstruction, and abdominal distension typically presenting in the neonatal period. The sensorineural hearing loss affects the inner ear or auditory nerve pathways, and the polydactyly may involve the hands, feet, or both. This syndrome affects multiple body systems including the gastrointestinal tract, the auditory system, and the skeletal system. This condition has been described in only a very small number of families in the medical literature, making it one of the rarest syndromic forms of Hirschsprung disease. The exact genetic basis remains poorly characterized. Some reports have suggested an autosomal recessive inheritance pattern based on the occurrence in siblings born to unaffected parents, though this has not been definitively established. Management is multidisciplinary and symptom-based: Hirschsprung disease typically requires surgical intervention (pull-through procedure) to remove the aganglionic bowel segment, hearing loss may be managed with hearing aids or cochlear implants, and polydactyly can be addressed surgically if functionally or cosmetically indicated. Early diagnosis and coordinated care involving pediatric surgery, audiology, orthopedics, and genetics are essential for optimizing outcomes.

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