A rare bone disease with anomaly of both index fingers (accessory ossicle at the metacarpophalangeal joint with resulting ulnar deviation) and typically in association with Pierre Robin sequence comprising micrognathia, cleft palate and glossoptosis. In 80% of cases, the digital abnormality is associated with Pierre Robin sequence. Additional frequently reported congenital malformations include cardiac defects such as ventricular septal defect and interatrial communication. Homozygous and compound heterozygous mutations in TGDS (13q32.1) have been implicated as causal in this syndrome. Transmission is autosomal recessive. Genetic counselling is recommended.

A rare bone disease with anomaly of both index fingers (accessory ossicle at the metacarpophalangeal joint with resulting ulnar deviation) and typically in association with Pierre Robin sequence comprising micrognathia, cleft palate and glossoptosis. In 80% of cases, the digital abnormality is associated with Pierre Robin sequence. Additional frequently reported congenital malformations include cardiac defects such as ventricular septal defect and interatrial communication. Homozygous and compound heterozygous mutations in TGDS (13q32.1) have been implicated as causal in this syndrome. Transmission is autosomal recessive. Genetic counseling is recommended.