Aquino S L, Chiles C, Halford P
Department of Radiology, Wake Forest University School of Medicine, Winston-Salem, NC 27157-1088, USA.
AJR Am J Roentgenol. 1998 Aug;171(2):359-63. doi: 10.2214/ajr.171.2.9694451.
The purpose of this study was to compare the CT findings of consolidative bronchioloalveolar carcinoma (BAC) with consolidative infectious pneumonia and determine if any pattern revealed by CT is more specific for one disease than the other and may therefore expedite a diagnosis of consolidative BAC using CT.
The CT findings in 20 patients with consolidative BAC and 20 patients with consolidative infectious pneumonia were reviewed. Radiologic features included the presence and distribution of consolidation, nodules, and ground-glass opacities; the presence of air bronchogram, mucous bronchogram, contrast enhancement, cysts, or cavities within the consolidation; and pulmonary fibrosis or significant parenchyma scarring.
Statistically significant (p < .003) findings that were more often seen on CT scans of patients with consolidative BAC than on those of patients with consolidative pneumonia included coexisting nodules (p < .001) and a peripheral distribution of consolidation (p < .001).
When nonresolving peripheral consolidative pneumonia, especially with associated nodules, is shown on CT, radiologists should suspect BAC when the patient is an adult with normal immunity.
本研究旨在比较实性细支气管肺泡癌（BAC）与实性感染性肺炎的CT表现，确定CT显示的任何模式对一种疾病是否比另一种疾病更具特异性，从而能否利用CT加快实性BAC的诊断。
回顾了20例实性BAC患者和20例实性感染性肺炎患者的CT表现。放射学特征包括实变、结节和磨玻璃影的存在及分布；实变区内空气支气管征、黏液支气管征、对比增强、囊肿或空洞的存在；以及肺纤维化或显著的实质瘢痕形成。
与实性肺炎患者的CT扫描相比，实性BAC患者CT扫描上更常出现的具有统计学意义（p <.003）的表现包括共存结节（p <.001）和实变的外周分布（p <.001）。
当CT显示为不消散的外周实性肺炎，尤其是伴有相关结节时，如果患者是免疫正常的成年人，放射科医生应怀疑为BAC。
