[Cystic acne and clinocomptodactyly in Klinefelter's syndrome (46XY/47 XXY mosaic)].

Klinefelter's syndrome was found in a 18 year old patient, suffering for four years from nodulocystic acne. Serum gonadotropins were within normal range, while histology of the testes revealed beginning tubular hyalinization. The case report shows that young patients with Klinefelter's syndrome may present symptoms that seem to exclude this syndrome. Furthermore, our patient exhibited klinokamptodaktylia of hands and feet, a congenital anomaly occurring very rarely in Klinefelter's syndrome.