Cryptomicrotia - brachydactyly - excess fingertip arch syndrome describes a combination of malformations that include bilateral cryptomicrotia, brachytelomesophalangy with short middle and distal phalanges of digits 2 through 5, hypoplastic toenails and excess fingertip arch patterns, and has been reported in one family (mother and son). Cryptomicrotia - brachydactyly - excess fingertip arch syndrome is thought to follow an autosomal dominant transmission. There have been no further descriptions in the literature since 1988. The disease is Monarch Disease Ontology id MONDO_0007409 (cryptomicrotia-brachydactyly-excess fingertip arch syndrome). Also known as: Cryptomicrotia-brachydactyly syndrome, Tonoki-Ohura-Niikawa syndrome.