title: [A case of 48 XXYY Klinefelter's syndrome].
abstract: We observed a patient with 48 XXYY Klinefelter syndrome who visited our hospital because of a short penis as chief complaint. The patient was a 21-year-old, tall and obese man. He had gynecomastia. The penis was short and bilateral testes were underdeveloped. Endocrinologically the LH and FSH showed high level and the testosterone was low. A diagnosis of very rare 48 XXYY Klinefelter was made based of the chromosomal analysis.
authors.affiliation: Department of Urology, Kaizuka Municipal Hospital.
authors.forename: M
authors.initials: M
authors.lastname: Ikegami
authors.forename: K
authors.initials: K
authors.lastname: Hashimoto
authors.forename: N
authors.initials: N
authors.lastname: Onishi
authors.forename: M
authors.initials: M
authors.lastname: Iguchi
authors.forename: H
authors.initials: H
authors.lastname: Kiwamoto
authors.forename: T
authors.initials: T
authors.lastname: Kurita
mesh_terms: D000328:Adult; D006177:Gynecomastia; D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000235:genetics*; D008297:Male