folded-lung syndrome

round·ed at·el·ec·ta·sis

an area of atelectatic lung caused by parenchymal infolding due to pleural fibrosis, most often from asbestos exposure; appears as a masslike opacity and can be mistaken for lung cancer; may be associated with a comet tail sign; high level of contrast enhancement on dynamic computed tomography aids diagnosis.

fold·ed-lung syn·drome

(fōld'ĕd-lŭng sin'drōm)
Collapse of part of the lung caught between shrinking fibrous pleural scars, sometimes resulting from pleural asbestosis.