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The Korean Journal of Cytopathology 2000;11(1): 35-40.
Fine Needle Aspiration Cytology of Inflammatory Myofibroblastic Tumor in Mesentery: A Case Report.
Hyun Jin Son, Joo Heon Kim, Woo Sung Moon, Myoung Jae Kang, Ho Yeul Choi
Department of Pathology, and Institute for Medical Sciences, College of Medicine, Chonbuk National University, Chonju, Korea. mjkang@moac.chonbuk.ac.kr
Since inflammatory myofibroblastic tumor was initially recognized in the lung, this tumor has been described in other extrapulmonary sites. In spite of relatively uniform histologic findings in various organs, a rarity in extrapulmonary sites and highly vascular characteristics frequently lead to a misdiagnosis in preoperative radiology and fine needle aspiration cytology. We present a case of inflammatory myofibro blastic tumor occurring in the mesentery of a 4-month-old girl. Fine needle aspira tion cytology smear disclosed characteristic spindle cells intermixed with prominent mature plasma cells and lymphocytes. According to the immunohistochemical staining, we recognized that the intervening spindle cells are myofibroblasts which have reactivity for the both actin and vimentin.
Key Words: Inflammatory myofibroblastic tumor; Mesentery; Fine needle aspiration cytology