Large coalescent parenchymal nodules in pulmonary sarcoidosis: "sarcoid galaxy" sign.
OBJECTIVE
The purpose of this study was to evaluate the large parenchymal nodules in pulmonary sarcoidosis and to describe a new CT sign termed the "sarcoid galaxy."


CONCLUSIONS
The CT appearance of pulmonary sarcoidosis suggests that the large nodules arise from a coalescence of small nodules. The large nodules are surrounded by many tiny satellite nodules. These findings were considered to simulate the appearance of a galaxy. This observation was supported by radiologic-pathologic correlation. The sarcoid galaxy sign may be a useful adjunct in the diagnosis of pulmonary sarcoidosis.
Nakatsu
Masashi
M
Department of Radiology and Nuclear Medicine, Kyoto University Hospital, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.
Hatabu
Hiroto
H
Morikawa
Kenji
K
Uematsu
Hidemasa
H
Ohno
Yoshiharu
Y
Nishimura
Koichi
K
Nagai
Sonoko
S
Izumi
Takateru
T
Konishi
Junji
J
Itoh
Harumi
H
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017565:Sarcoidosis, Pulmonary / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed