艾滋病合并消化道恶性肿瘤的CT表现

CT features of gastrointestinal malignant tumors in patients with AIDS

目的:探讨艾滋病合并消化道恶性肿瘤的CT表现。方法:回顾性分析10例艾滋病合并消化道恶性肿瘤的影像资料,结合相关文献总结消化道肿瘤的CT特点。结果:1例卡波西肉瘤累及直肠,肠壁环形增厚,强化明显,无肿大淋巴结。5例淋巴瘤中3例以多节段弥漫性浸润为主,管壁环形增厚,管腔狭窄不明显,1例为局灶浸润,1例局灶浸润伴腔内结节状突起;5例均有腹膜后增大淋巴结,其中4例同时伴系膜淋巴结增大,4例增强轻度强化,1例明显强化。4例胃肠道腺癌中3例表现为局灶突起结节,明显强化,管腔狭窄,灶周见增大淋巴结。结论:艾滋病合并消化道恶性肿瘤的CT表现具有一定的特征,能够为其诊断及鉴别诊断提供重要依据。

Objective：To investigate the CT features of gastrointestinal malignant tumor in patients with acquired im munodeficiency syndrome （AIDS）. Methods：The CT features of gastrointestinal malignant tumors in ten patients with AIDS proven by pathology were analyzed retrospectively with literature review. Results： One case of Kaposi sarcoma had rectum involvement presenting as circular thickening of rectal wall with obvious enhancement yet with no lymphadenopathy. Among the five cases with lymphoma, three showed multi-segment diffuse infiltration, circular thickening of intestinal wall yet with out obvious luminal stricture or obstruction, one case had focal infiltration and one showed focal infiltration accompanied with intra-luminal nodular intrusion. All of the five cases had retroperitoneal lymphadenopathy,of which four had mesenter ic lymphadenopathy as well,mild contrast enhancement was revealed,while one presented as obvious contrast enhancement. In 4 patients with gastrointestinal adenocarcinoma,3 showed nodular or polypoid lesion,with marked enhancement, luminal stricture and peritumoral lymphadenopathy. Conclusion：Certain characteristic CT features could be assessed in patients with AIDS and associated gastrointestinal malignant tumor,which can provide important reference for the diagnosis and differen tial diagnosis.