Triphalangeal thumbs-brachyectrodactyly syndrome is characterized by triphalangeal thumbs and brachydactyly of the hands. It has been described in four families and in one isolated case. Ectrodactyly of the feet and, more rarely, ectrodactyly of the hands were also reported in some family members. Transmission is autosomal dominant. The disease is triphalangeal thumbs-brachyectrodactyly syndrome (MONDO_0008607, a Monarch Disease Ontology id). Also known as: Carnevale-Hernández-del Castillo syndrome.