Ulnar-mammary syndrome (UMS) is an autosomal dominant disorder caused by haploinsufficiency of the TBX3 gene. It is characterized by bilateral hypoplasia or aplasia of upper limbs on the ulnar side, mammary and apocrine gland hypoplasia, and genital abnormalities. Delayed puberty is one of the recognized features in UMS.
Category
Congenital malformation
Brite
Human diseases in ICD-11 classification [BR:br08403]
20 Developmental anomalies
Multiple developmental anomalies or syndromes
LD2F Syndromes with multiple structural anomalies, without predominant body system involvement
H00637 Ulnar-mammary syndrome