Inflammatory myofibroblastic tumor presenting as acute abdomen: report of one case.

Hsiu-Huei Wen, Kui-Lin Cheng, Yau-Kan Hung, P. Chang
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Abstract

Inflammatory myofibroblastic tumor (IMT) is a very rare benign tumor composed of myofibroblastic spindle cells of uncertain etiology, which can occur at any age and affect any organ system. More and more cases of IMT in children have been described in pediatric literature in recent years. However, this tumor occurring intraabdominally in children has rarely been reported in Taiwan. Here we present a 1-year-9-month-old boy who had fever and abdominal pain only for 2 days, symptoms mimicking acute abdomen. After imaging study, a huge tumor nearly 10 cm in diameter was incidentally found over the right abdomen with unknown origin and nature. After surgical removal of the tumor, IMT was confirmed by the pathological findings. It is very difficult to make an accurate preoperative diagnosis on this tumor according to past experience, so the role of pathological diagnosis with immunohistochemical study becomes important. This case illustrates that IMT should be considered as a possible cause of intra-abdominal mass in children who have fever of unknown origin.
以急腹症为表现的炎性肌成纤维细胞瘤1例报告。
炎症性肌纤维母细胞瘤(IMT)是一种非常罕见的由肌纤维母细胞梭形细胞组成的良性肿瘤,病因不明,可发生于任何年龄,影响任何器官系统。近年来,越来越多的儿童IMT病例在儿科文献中被描述。然而,此肿瘤发生于儿童腹腔内,在台湾很少有报导。这里我们报告一个1岁9个月大的男孩,他发烧和腹痛仅持续2天,症状类似急腹症。经影像学检查,在右腹部偶然发现一个直径近10厘米的巨大肿瘤,来源和性质不明。手术切除肿瘤后,病理结果证实了IMT。根据以往的经验很难对该肿瘤进行准确的术前诊断,因此免疫组织化学病理诊断的作用变得非常重要。本病例表明,IMT应被认为是不明原因发热儿童腹腔内肿块的可能原因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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