Suppressed gonadotropins as a warning sign of an extragonadal tumor in an adolescent with Klinefelter syndrome.
Guillermo Alonso, María F Kuspiel, Yamila Fittipaldi et al.
✦ AI-curated · Sources linked
Case in brief
An adolescent with Klinefelter syndrome was found to have a mediastinal germ cell tumor. The diagnostic clue was an unusual gonadotropin profile, with suppressed gonadotropins prompting recognition of the extragonadal tumor. The report does not provide further clinical findings, investigations, treatment, or outcome.
What made this case unusual
Suppressed gonadotropins served as the clue to a mediastinal germ cell tumor in an adolescent with Klinefelter syndrome.
Diagnostic / clinical pearl
In an adolescent with Klinefelter syndrome, an unusual gonadotropin profile may be a clue to an extragonadal germ cell tumor.