XXY Klinefelter's syndrome with bilateral cryptochidism, obesity, multiple capillary hemangiomas and telangiectasia.

A case of XXY Klinefelter's syndrome associated with bilateral cryptochidism, -ultiple capillary hemangiomas and vesical telangiectasia is reported. Testicular biopsy revealed Leydig cell hyperplasia with hyalinization of the seminiferous tubular membrane. The patient presented with recurrent hematuria. Excretory urography, urethroscopy and renal angiography were normal. Cystoscopy revealed multiple telangiectasia, which was responsible for the hematuria. To our knowledge this is the first report of multiple capillary hemangiomas and vesical telangiectasia associated with calssical Klinefelter's syndrome.