【摘要】 目的 探讨腹盆腔炎性肌纤维细胞瘤(IMT)的CT表现及临床病理学特征。方法 选取经手术病理证实的9例IMT,分析临床特征及影像学表现。结果 9例IMT患者中CT平扫4例密度均匀，呈等密度影；3例呈等低混杂密度影，伴有囊变坏死，1例病灶边缘伴线样钙化影。CT增强6例动脉期呈轻至中度强化，静脉期呈现持续性强化，2例动脉期可见小血管强化影；1例动脉期呈中度以上强化，静脉期持续性强化。4例病灶内实性部分呈结节、片絮状强化伴不同程度的黏液变性区，2例呈环形强化。5例肿瘤边界清晰，4例肿瘤边缘不规则，可见范围不等的小片状或晕状渗出模糊影。4例病灶周边脏器不同程度受压、移位；2例肝脏转移、腹盆腔转移及腹壁侵犯。随访9例均无瘤生存，2例复发均手术切除。结论 腹盆腔IMT的CT表现具有多样性，其影像学表现在一定程度上可反映病理学特征。更多还原

【Abstract】 Objective To explore the CT and clinicopathologic characteristics of inflammatory myofibroblastic tumor(IMT) in the abdomen and pelvis. Methods Clinical data, histological features and immunohistochemical results were retrospectively analyzed in 9 cases of inflammatory myofibroblastic tumor(IMT) arising from the abdomen and pelvis. Results Four cases showed homogeneous density. Three cases showed mixed density with cystic degeneration and necrosis, and one case showed linear calcification. On enhanced CT scan, one tumor showed moderate enhancement and six tumors showed mild to moderate enhancement in the arterial phase. Two cases showed shadow of small blood vessels in the arterial phase. On the vein phase of enhanced CT, all tumors showed persistent obvious enhancement. Four cases with the solid components showed nodules and patches of flocculent enhancement with varying degrees of mucinous degeneration. Two cases showed ring enhancement. In five cases, the boundary of the lesion was clear. Four tumors were dim and with exudation presenting as“small patch”or“halo”. In four cases, different degree of intestinal and viscera compression and displacement occurred around the lesion. Liver metastasis, abdominal metastasis and abdominal wall invasion were observed in two cases. Nine cases were followed up. Two cases recurred and were resected. All cases survived without tumor. Conclusion The CT findings of IMT in the abdomen and pelvis can show certain different characters, which can reflect its pathological characteristics, to some extent, and which is helpful for the diagnosis of this tumor.更多还原