INFLAMMATORY MALIGNANT FIBROUS HISTIOCYTOMA OF THE ILEAL MESENTERY-A CASE REPORT-

悪性線維性組織球腫（MFH）は主に成人の四肢軟部組織に好発する非上皮性悪性腫瘍である．通常，腹腔内実質臓器や後腹膜を原発とすることは稀であるが，小腸間膜を原発とする炎症性MFHの切除例を経験したので報告する．症例は61歳，男性．下腹部膨満感を主訴に近医受診．採血検査で炎症反応を認め，腹部単純CT検査で下腹部骨盤内に腫瘤性病変を認めた．後腹膜腫瘍の疑いで当科紹介入院．造影3D-CT検査で回結腸動脈より栄養を受ける小腸間膜腫瘍の診断となり，回腸部分切除術を施行した．病理組織検査で回腸腸間膜原発の炎症性MFHと診断された．術後経過は良好で，術後9日目に退院した．現在外来で経過観察中であり，術後約2年が経過するが明らかな再発所見は認めていない．文献的考察を含めて症例報告する．

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