✓ A case is presented of suprasellar germinoma in a 20-year-old man with Klinefelter's syndrome. Hypogonadism is known to be a characteristic of Klinefelter's syndrome, and has often been described in cases of suprasellar germinoma. Thus, both pathological entities may mimic one another. It is emphasized that a chromosomal karyotype should be determined in every case of intracranial germ-cell tumor associated with hypogonadism.
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