Korean J Pathol.  1999 Sep;33(9):729-732.

Inflammatory Myofibroblastic Tumor of the Mesentery: A case report

• Lim SJ
• Kim GY
• Park JH
• Kim YW
• Park YK
• Lee JH
• Yang MH

Abstract

Inflammatory myofibroblastic tumor or inflammatory pseudotumor is characterized by spindle cell proliferation with inflammatory cell infiltration, predominantly plasma cells and lymphocytes. We have experienced a case of inflammatory myofibroblastic tumor of the mesentery in a 57-year-old male patient with intermittent abdominal pain. On computer tomography, a well demarcated mass was seen in the mesenteric side of the ascending colon. Right hemicolectomy was performed under the impression of the metastatic tumor of lymph nodes. Grossly, a rather well-circumscribed gray white mass was noted in the mesentery of the ascending colon. Microscopically, the lesion consisted of plump spindle cells and accompanying inflammatory cellular infiltrates. The spindle cells were positive for vimentin.

Keyword

Inflammatory myofibroblastic tumor; Inflammatory pseudotumor; Mesentery

MeSH Terms

Abdominal Pain
Cell Proliferation
Colon, Ascending
Granuloma, Plasma Cell
Humans
Lymph Nodes
Lymphocytes
Male
Mesentery*
Middle Aged
Myofibroblasts*
Plasma Cells
Vimentin
Vimentin