Cloudy nodule on HRCT: a new clinico-radiologic entity of pulmonary adenocarcinoma.
We propose cloudy nodule (CN) on HRCT as a special type of pulmonary adenocarcinoma. CN was defined as a cloudy nodular shadow in the peripheral part of the lung with lower density than pulmonary vessels on HRCT. Radiologic images of nine CNs in eight cases were correlated with the pathological findings of the resected specimen. All CNs were clearly demarcated on HRCT. They were pathologically composed of well differentiated adenocarcinoma, mainly bronchioloalveolar type with little or no central scar. Plain films were negative in six of nine cases. CN on HRCT may indicate well-differentiated adenocarcinoma with good prognosis.
Koizumi
N
N
Department of Radiology, Niigata University School of Medicine, Japan.
Akita
S
S
Sakai
K
K
Oda
J
J
Tsukada
H
H
Usuda
H
H
Emura
I
I
Naito
M
M
Hirono
T
T
D002282:Adenocarcinoma, Bronchiolo-Alveolar / Q000000981:diagnostic imaging* / Q000473:pathology; D000368:Aged; D002921:Cicatrix; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011856:Radiographic Image Enhancement; D003074:Solitary Pulmonary Nodule / Q000000981:diagnostic imaging* / Q000473:pathology; D015996:Survival Rate; D014057:Tomography, X-Ray Computed