Inflammatory pseudotumors (IPT) are a fascinating group of lesions which involve almost all organs and tissues of the body. The clinical manifestations are diverse. Final diagnosis can only be made by meticulous microscopic examination of different areas of the tumor. A 60 year-old woman had a pelvic IPT with central infectious abscess. The lesion involved her urinary bladder, mesentery, terminal ileum, right rudimentary ovary and the abdominal wall. It mimicked malignant tumor clinically, and led to total surgical excision. Early follow-up has shown a favorable results. IPTs are extremely uncommon. The characteristic pathologic picture is a reparative fibroblastic tissue infiltrated by polymorphic inflammatory cells. Pelvic IPT, admixed with central infectious abscess, is even rarer. Prior pelvic surgery and pasteurella hemolytica infection might be causative factors in this reported case.
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