title: Klinefelter's syndrome and malignant lymphoma.
abstract: The high risk for malignancy for carriers of several congenital chromosomal abnormalities is discussed. We report herein a patient with Klinefelter's syndrome associated with a high grade malignant non-Hodgkin lymphoma. Chromosome analysis of PHA-stimulated lymphocytes showed a mosaic of 46,XXY (90%) and normal 46,XY (10%) metaphases. To our knowledge, this is the third reported case of a malignant non-Hodgkin lymphoma in a patient with Klinefelter's syndrome in the literature.
mesh_terms: D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000150:complications* / Q000235:genetics; D008223:Lymphoma / Q000150:complications* / Q000235:genetics; D008297:Male; D008875:Middle Aged