Bronchiolitis obliterans with organizing pneumonia (BOOP), presenting as a ring-shaped opacity at HRCT (the atoll sign). A case report.
Zompatori
M
M
Policlinico S. Orsola-Malpighi, Bologna.
Poletti
V
V
Battista
G
G
Diegoli
M
M
D018549:Cryptogenic Organizing Pneumonia / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed