肺原发性非霍奇金淋巴瘤的影像学表现与临床病理对照

目的探讨肺原发性非霍奇金淋巴瘤(PPNHL)的影像学表现。资料与方法回顾性分析经手术和／或病理证实的PPNHL7例的影像学和临床病理所见，并复习文献。结果7例PPNHL中肺内单发肿块5例，肿块边界不清呈磨玻璃状3例，分叶状肿块4例；肺炎样改变和肺段实变各1例。MRI检查(2例)病灶在T1WI呈等信号，T2WI呈等高信号。B淋巴细胞性3例，T淋巴细胞性2例，另2例未分型。结论PPNHL罕见，临床无特异性，肺内单发分叶状肿块且边界呈磨玻璃状改变是本病较特异的征象，确诊依靠病理检查。

Primary Pulmonary Non-Hodgkin's Lymphoma: Imaging Findings and Pathology

Objective To study the imaging manifestations of primary pulmonary non Hodgkin's lymphoma (PPNHL).Materials and Methods Imaging features, including plain chest film (n=7), CT (n=5) and MRI (n=2), and pathologic findings in 7 patients with pathologically proved PPNHL were retrospectively analyzed. Related references were reviewed.Results Of 7 cases, solitary pulmonary mass was seen in 5, in 3 of which the lesion had indistinct border and presented as ground glass shadow, and in 4 of which the lesion was lobulated. For the remaining 2cases, pneumonia shadow and segmental consolidation was seen in one each. On MRI of 2 cases, the lesions were iso signal on T 1WI and iso or high signal on T 2WI. Pathologically, B lymphocyte type was seen in 3, T lymphocyte type in 2 and not typed in 2 cases.Conclusion PPNHL is a rare disease. Clinically, it has no specific features. Solitary pulmonary lobulated mass with blurred border and ground glass shadow is a relatively characteristic imaging finding, nevertheless, it is depended on pathologic examination to establish the diagnosis.