Article Title: Klinefelter’s syndrome

Authors: Christopher H. BlevinsMichael E. Wilson

Date of Publication: December 3, 2012

A 29 year old man presented to primary care with anxiety and depression that had worsened since childhood. Further questioning revealed a history of poor school performance, poor body image, and poor self esteem. On physical examination, the patient’s height was 189 cm and he had narrow shoulders, wide hips, sparse facial hair (which he shaved once every two months), and small, firm testicles. He was found to have elevated luteinising hormone and follicular stimulating hormone concentrations, low serum concentrations of testosterone, absent sperm on semen analysis, and a karyotype of 47,XXY.

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