Perforation of necrotizing primary retroperitoneal tumors into the gastrointestinal tract.
D000005:Abdomen; D000008:Abdominal Neoplasms; D041981:Gastrointestinal Tract; D006801:Humans; D009369:Neoplasms; D012186:Retroperitoneal Neoplasms; D012187:Retroperitoneal Space
ABDOMEN/neoplasms; GASTROINTESTINAL SYSTEM