title: [Case demonstration: XX-male].
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000175:diagnosis; D008214:Lymphocytes / Q000166:cytology; D008297:Male; D012729:Sex Chromosome Aberrations / Q000175:diagnosis*
vernacular_title: XX-Mann