Patrício Catarina, Amaral Patrícia, Lourenço João
Department of Internal Medicine, Hospital de Santo António dos Capuchos, Lisboa, Portugal.
Department of General Surgery, Hospital de Santo António dos Capuchos, Lisboa, Portugal.
BMJ Case Rep. 2014 Aug 25;2014:bcr2014204129. doi: 10.1136/bcr-2014-204129.
Amoebiasis is an uncommon infection in developed countries caused by the protozoan Entamoeba histolytica. Amoebic liver abscess is the most frequent extraintestinal presentation of the disease; pleuropulmonary involvement is rare, occurring mostly by rupture of the abscess into the pleural space or lung parenchyma. We describe a case of a 48-year-old migrant from São Tomé e Príncipe, with fever, wasting, dry cough and right upper abdominal pain for the past 2 months. The CT scan revealed a voluminous liver abscess with thrombosis of the right suprahepatic and inferior vena cava, right pulmonary lobar abscess and multiple diffuse condensations in both lungs. Aspirated pus resembled anchovy sauce; blood and aspirated material cultures for infectious agents were negative. Serology for E. histolytica was positive, and the diagnosis of hepatopulmonary amoebiasis with infectious phlebitis was confirmed by positive PCR in the liver pus. Treatment with metronidazole+paramomycin led to clinical and radiological resolution.
阿米巴病在发达国家是一种由溶组织内阿米巴原虫引起的罕见感染。阿米巴肝脓肿是该疾病最常见的肠外表现;胸膜肺受累罕见,主要是由于脓肿破裂进入胸腔或肺实质所致。我们描述了一例来自圣多美和普林西比的48岁移民病例,患者在过去2个月出现发热、消瘦、干咳和右上腹疼痛。CT扫描显示有一个巨大的肝脓肿,伴有肝右叶上腔静脉和下腔静脉血栓形成,右肺叶脓肿以及双肺多处弥漫性实变。吸出的脓液类似鱼酱;血液和吸出物的感染病原体培养均为阴性。溶组织内阿米巴血清学检查呈阳性,肝脓肿的PCR检测呈阳性,确诊为伴有感染性静脉炎的肝肺阿米巴病。甲硝唑+巴龙霉素治疗后临床和影像学表现均恢复正常。