Mesenteric Inflammatory Pseudotumor: Unusual Presentation With Leukemoid Reaction and Massive Calcified Mass

Abstract

The authors describe a child with an unusual presentation of mesenteric inflammatory pseudotumor in association with leukemoid reaction. An 11-year-old-boy admitted with short stature was found to have an abdominal mass localized in the right lower quadrant. The leukocyte count was 92,000/mm3 with neutrophilic leukemoid reaction. Abdominal ultrasonography and computed tomography revealed a massive calcified mass in the pelvis. Total resection of the mass was performed and the pathologic diagnosis of inflammatory pseudotumor of the mesentery was made. Leukemoid reaction dramatically resolved within a few days after surgical resection. Physicians should be aware of the association of inflammatory pseudotumor, leukemoid reaction, and massive calcification.

Imaging of nasopharyngeal inflammatory pseudotumours: differential from nasopharyngeal carcinoma

“…Inflammatory pseudotumour (IPT) is an idiopathic inflammatory lesion characterised by the proliferation of myofibroblastic spindle cells with mixed inflammatory infiltrates of plasma cells, lymphocytes, eosinophils and histiocytes [1]. IPT has been described in various locations in the body including the lungs, lymph nodes, trachea, spleen, mesentery and skin [2][3][4][5][6][7][8]. IPT of the head and neck region most commonly occurs in the orbits [9,10], although IPT of the larynx, paranasal sinuses, parapharyngeal space and salivary glands [11][12][13][14][15] has also been reported.…”

Inflammatory Myofibroblastic Tumour of the Extrahepatic Bile Ducts: An Unusual Cause of Obstructive Jaundice in Children

“…These include elevated thrombocyte counts and erythrocyte sedimentation rates, hypochromic microcytic anaemia, hypergammaglobulinaemia, eosinophilia, leucocytosis, low serum iron and total iron binding capacity. Because these laboratory abnormalities resolve after tumour excision, they may be good follow-up indicators for recurrent tumour (9,11,13,17).…”

Inflammatory Myofibroblastic Tumor of the Small Bowel Mesentery: An Unusual Cause of Abdominal Pain and Uveitis

“…Similar to retroperitoneal fibrosis, IMT has been reported in conjunction with other autoimmune diseases and/or symptoms. 12 Herein, we report the eighth case of a mesenteric IMT in the English literature 4,5,[13][14][15][16][17] in a patient presenting with abdominal pain, fatigue, weight loss, uveitis, and anemia.…”