白血病肺部浸润的HRCT表现

目的：探讨白血病肺部浸润的HRCT表现。方法：15例经组织病理学证实的白血病肺部浸润患者，其中慢性粒细胞性白血病6例，慢性淋巴细胞性白血病4例，T细胞白血病2例，急性粒细胞白血病2例，急性淋巴细胞性白血痛1例。采用双盲法，由两位放射科医师回顾性分析其HRCT表现。结果：15例患者均显示有小叶间隔增厚、支气管血管束增粗和多发肺结节，7例有磨玻璃状改变和肺实变。其中3例急性粒细胞或急性淋巴细胞性白血病显示小叶间隔和支气管血管束线状增粗；10例慢性粒细胞或慢性淋巴细胞性白血病显示支气管血管束结节状增粗；2例成人T细胞白血病显示支气管血管束线状增粗，但主要改变为局灶性肺实变。结论：白血病肺部浸润的HRCT表现反映了白血病细胞倾向于浸润外周肺小动脉、支气管和细支气管周围肺间质的特点，白血病肺部浸润程度受白血病类型的影响。

HRCT Findings of Leukemic Pulmonary Infiltration

Objective:To evaluate the high-resolution CT findings of leukemic pulmonary infiltration.Methods:High-resolution CT(HRCT)findings in 15 patients with leukemic pulmonary infiltration based on histopathologic evidence were reviewed by two radiologists with double blind method,including chronic granulocytic leukemia (n=6)and chronic lymphocytic leukemia (n=4),adult T-cell leukemia (n=2),acute granulocytic leukemia (n=2),acute lymphocytic leukemia (n=1).Results:HRCT findings consisted of interlobular septum thi...