title: Coincidence of malignant lymphomas of low-grade with high-grade malignancy.
mesh_terms: D000368:Aged; D001344:Autopsy; D001706:Biopsy; D005260:Female; D006801:Humans; D008223:Lymphoma / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D013577:Syndrome