While family physicians may readily entertain genetic diagnoses in the
ir pediatric patients, they may fail to consider such diagnoses in the
ir adult patients. We present the case of a man with recurrent leg ulc
ers who was recognized as hypogonadal and was ultimately given the dia
gnosis of Klinefelter's syndrome (XXY) at age 47. Although there is no
primary treatment for XXY, significant associated conditions, includi
ng osteoporosis and testosterone deficiency, can be ameliorated. We re
view the clinical condition of XXY at various ages and summarize age-s
pecific interventions. We discuss the importance of genetic diagnosis
throughout the life span.