非HIV感染的马尔尼菲青霉病的影像学诊断及临床分析

摘要

目的 探讨非人类免疫缺陷病毒(HIV)感染的马尔尼菲青霉病(PSM)的螺旋CT、PET/CT及临床表现,提高对本病的诊断水平.方法 回顾性分析6例经纤维支气管镜肺活检和/或脓液培养确诊的非HIV感染的PSM的影像表现,治疗前均行胸部CT检查,其中2例行头部MRI,2例行PET/CT检查,分析影像学征象,并结合临床资料及复习文献.结果 单侧肺发病1例,双侧肺发病5例.双肺及右肺多发斑片、条索3例;多发结节2例,肿块伴结节1例.6例中伴小叶间隔增厚2例;气管纵隔瘘1例;心包及胸膜受累2例;骨质破坏及增生4例, 颅脑、肝脏受累各1例.6例均示两肺门、纵隔、颈部多发淋巴结肿大、融合及坏死,2例腹腔、腹膜后淋巴结增大.2例病灶标准化摄取值(SUV)均表现摄取升高,为1.4~13.9.本组首次影像诊断误诊5例.6例患者均经抗真菌药治疗好转.结论 非HIV感染的PSM的影像主要表现为两肺部多发斑片、结节及肿块,均伴淋巴结增大,多伴骨质破坏或增生,但缺乏特异性,确诊仍需病灶活检和脓液培养.%Objective To investigate spiral CT,PET/CT and clinical manifestations in non-HIV infectious penicilliposis marneffei lung disease, to improve diagnostic level of this disease.Methods Imaging manifestations of 6 cases of non-HIV infectious penicilliposis marneffei confirmed by bronchofiberscope lung biopsy and/or pus culture were analyzed retrospectively All cases underwent chest CT,two had brain MRI,and two had PET/CT scan before treatment.Imaging appearances were observed and combined with clinical dates and literatures.Results Unilateral lung lesion was detected in 1 case,bilateral lungs lesions in 5 cases.Multiple patchy consolidation,stripe shadow in bilateral lungs or right lung were found in 3 cases, multiple nodes in 2 cases, mass with nodes in 1 case.Among 6 cases, 2 had septa interlobulare thickness,1 had tracheal fistula,2 had pericardium and pleura involvement,4 had bone destruction,1 had the brainand liver involvement.6 cases showed multiple lymphadenectasis,amalgamation and necrosis in bilateral hilar,mediastinaand the neck.2 had abdominal cavity and or retroperitoneal lymphadenectasis.On PET/CT,2 cases showed high uptake,and the range of SUV value were 1.4-13.9.Initial misdiagnosis by imaging was found in 5 cases.6 patients recovered after anti fungus treatment.Conclusion Imaging appearances of non-HIV infectious penicilliposis marneffei mainly reveals as multiple patchy consolidation,nodes and mass in bilateral lungs, all accompany with lymphadenectasis, many with bone destruction,lack of specificity, which needs lesion biopsy and pus culture to make confirmed diagnosis.