title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 22-1967.
mesh_terms: D000038:Abscess / Q000175:diagnosis*; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis*; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis*; D012185:Retroperitoneal Fibrosis / Q000175:diagnosis*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*; D012509:Sarcoma / Q000175:diagnosis*; D014567:Urography