急性腹膜炎(acute peritonitis)CT病例

2022-09-01 放射沙龙 影像园

急性腹膜炎以继发性腹膜炎常见,多因腹腔脏器的穿孔、损伤、炎症和手术污染等引起腹膜的混合感染,常见的致病菌为大肠杆菌、厌氧菌、链球菌等。临床上有腹痛、全身感染、恶心、呕吐、高热等中毒症状。

【病史临床】男性,43岁,车祸致全身多处伤伴腹痛3小时余。

【影像图片】

【影像表现】 肝脏大小形态尚可,未见明显异常密度灶,胆囊体积略大,内密度略增高,脾脏密度欠均匀,肝脾周围可见少量弧形液性低密度灶,壁层腹膜增厚,网膜混浊,密度增高,肠管积气聚积,结构紊乱,右侧腹壁可见少量积气影,双肾大小形态尚可,未见明显高密度病灶,余未见明显异常。

【诊断】病理:符合(回肠、升结肠)肠穿孔致急性弥漫性腹膜炎;脾挫裂伤。右侧阑尾粘膜及粘膜下层纤维组织、淋巴组织增生,伴少量淋巴、浆细胞及嗜酸性粒细胞浸润;回肠及结肠肠壁浆膜面见纤维素渗出物与中性粒细胞浸润。脾组织包膜下组织坏死、出血灶形成。

【鉴别诊断】 血源性腹膜炎;外伤性腹膜炎

【讨论】 急性腹膜炎以继发性腹膜炎常见,多因腹腔脏器的穿孔、损伤、炎症和手术污染等引起腹膜的混合感染,常见的致病菌为大肠杆菌、厌氧菌、链球菌等。临床上有腹痛、全身感染、恶心、呕吐、高热等中毒症状。

CT表现为肝脾周围弧形液性低密度灶,腹膜增厚,肠管积气聚积,结构紊乱;腹腔肠管穿孔者可表现为腹腔少量积气影。

急性原发性腹膜炎,临床少见,致病菌多为溶血性链球菌、肺炎双球菌,经血液、淋巴或女性生殖器官进入腹腔所致。急性腹膜炎的确诊还需结合临床的症状及实验室检查结果。

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    2022-08-28 feather89
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    2021-11-10 bshuang
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    2021-11-10 xuyong530