title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 4-1972.
mesh_terms: D000293:Adolescent; D001344:Autopsy; D001706:Biopsy; D001854:Bone Marrow Cells; D001859:Bone Neoplasms / Q000175:diagnosis / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis; D008297:Male; D008854:Microscopy, Electron; D009362:Neoplasm Metastasis; D012208:Rhabdomyosarcoma / Q000175:diagnosis / Q000473:pathology*