[Familial hypogonadism with anosmia: Kallmann Syndrome].

The familial occurrence of hypogonadism and anosmia (Kallmann-Syndrome) is reported in a 15 5/12 year old boy and his 20 7/12 year old sister, who in addition has a ventricular septal defect. To establish the diagnosis it is important to examine the patient with hypogonadism for anosmia since voluntary information is rarely obtained. Quite often there are additional, associated anomalies which have to be searched for carefully.