Blepharonasofacial syndrome is a rare otorhinolaryngological malformation syndrome characterized by a distinctive mask-like facial dysmorphism, lacrimal duct obstruction, extrapyramidal features, digital malformations and intellectual disability.

Webbing or fusion of the fingers, involving soft parts only or including bone structure. Bony fusions are referred to as \"bony\" Syndactyly if the fusion occurs in a radio-ulnar axis. Fusions of bones of the fingers in a proximo-distal axis are referred to as \"Symphalangism\".