CT findings in "pseudoalveolar" sarcoidosis.
To determine the specific high resolution CT (HRCT) features for "pseudoalveolar" sarcoidosis, we reviewed HRCT of 10 patients with pathologically proven sarcoidosis. On HRCT the lesions of pseudoalveolar sarcoidosis were shown as homogeneous or inhomogeneous opacities 1-4 cm in diameter located either along the bronchovascular bundles or in the lung periphery adjacent to the pleural surface. The margin was irregular, and numerous nodules 1-2 mm in diameter were observed in the surrounding lung. Air bronchograms were observed in 6 patients. In addition to these lesions, other CT abnormalities such as nodules, groundglass opacities, thickened bronchovascular bundles, and interlobular septa were found in all 10 cases. Good response of pseudoalveolar sarcoid lesions to administration of corticosteroid was observed in all three cases in which follow-up CT was available.
Johkoh
T
T
Department of Radiology, Osaka University Medical School, Japan.
Ikezoe
J
J
Takeuchi
N
N
Kohno
N
N
Tomiyama
N
N
Akira
M
M
Ebara
H
H
Yoshioka
H
H
Kozuka
T
T
D000328:Adult; D001980:Bronchi; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging / Q000188:drug therapy; D008198:Lymph Nodes / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010995:Pleural Diseases / Q000000981:diagnostic imaging; D011650:Pulmonary Alveoli / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D012507:Sarcoidosis / Q000000981:diagnostic imaging* / Q000188:drug therapy; D014057:Tomography, X-Ray Computed