A Case of Inflammatory Pseudotumor in Appendix Vermiformis.

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  • Koseki K.
    2nd Department of Surgery, Tokyo Medical and Dental University, School of Medicine
  • Yaegashi K.
    Department of Surgery, Soka Municipal Hospital
  • Ohno R.
    Department of Surgery, Soka Municipal Hospital
  • Hoshino N.
    Department of Surgery, Soka Municipal Hospital
  • Ito M.
    2nd Department of Surgery, Tokyo Medical and Dental University, School of Medicine
  • Sugihara K.
    2nd Department of Surgery, Tokyo Medical and Dental University, School of Medicine

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  • 虫垂の炎症性偽腫ようの１例

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A 43-year-old male was admitted to our hospital complaining of right lower abdominal pain. An elastic hard mass with tenderness was palpable. Barium enema revealed the mass between the ileum and the cecum, but failed to show the appendix. Colonoscolpic examination revealed an elevation at the orifice of the appendix. Operative findings proved that the hard mass, 7×6cm in diameter, was attached to the surrounding organs, including the appendix. Right hemicolectomy was performed. Histopathologically, the tumor consisted of proliferation of fibroblasts and inflammatory cells. These histopathological findings revealed that the tumor was inflammatory pseudotumor (IPT) in the appendix vermiformis.<BR>IPT in the appendix is rare, and the etiology and pathogenesis are not known to have the same natural history as that in other gastrointestinal tract cases.

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