Monarch Disease Ontology entry MONDO_0008411 (ulnar-mammary syndrome) (UMS) is a rare developmental disorder characterized by ulnar defects, mammary and apocrine gland hypoplasia and genital anomalies. Delayed puberty dental anomalies, short stature and obesity have also been described. Also known as: Pallister ulnar-mammary syndrome, Schinzel Syndrome, Schinzel syndrome, UMS, ums.