Pulmonary Legionellosis in Oncologic Patients: Findings on Chest CT.
作者信息
Shroff Girish S, Marom Edith M, Wu Carol C, Godoy Myrna C B, Wei Wei, Ihegword Andrea, Han Xiang-Yang, Truong Mylene T
机构信息
From the *The University of Texas MD Anderson Cancer Center, Houston, TX; and †Department of Diagnostic Imaging, The Chaim Sheba Medical Center, Tel Hashomer, Israel.
出版信息
J Comput Assist Tomogr. 2016 Nov/Dec;40(6):917-922. doi: 10.1097/RCT.0000000000000461.
OBJECTIVE
The purpose of this study was to report the computed tomography (CT) findings of non-pneumophila Legionella pneumonia and to compare these CT findings to those caused by Legionella pneumophila in oncologic patients.
METHODS
Chest CT scans of 34 oncologic patients with culture-proven Legionella infection (16 L. pneumophila and 18 non-pneumophila Legionella) were retrospectively reviewed. Radiologic checkpoints included consolidation, ground-glass opacities, cavitation, nodules, tree-in-bud opacities, septal thickening, pleural effusions, and adenopathy, as well as the halo, reversed halo, and bulging fissure signs.
RESULTS
The most common imaging feature of Legionella pneumonia was consolidation, seen in 94% of patients. Ground-glass opacities were the next most common abnormality. The halo sign was present in 26% of patients, in both immunocompetent and immunosuppressed hosts. Most features occurred with similar frequency between L. pneumophila and non-pneumophila Legionella.
CONCLUSIONS
Findings in L. pneumophila pneumonia and non-pneumophila Legionella pneumonia are similar but nonspecific. Airspace consolidation is almost always present; the halo sign is not uncommon.
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