Lung - nontumor
Other nonneoplastic disease
Round or rounded atelectasis

Author: Elliot Weisenberg, M.D. (see Authors page)

Revised: 22 March 2017, last major update December 2011

Copyright: (c) 2003-2017,, Inc.

PubMed search: round atelectasis [title] OR rounded atelectasis [title]

Cite this page: Round or rounded atelectasis. website. Accessed November 18th, 2018.
Definition / general
  • Localized area of subpleural lung collapse with associated pleural fibrosis
  • Patients usually asymptomatic with occupational exposure to asbestos
  • Usually posterior portion of a lower lobe
Gross description
  • Lung shows ill defined atelectasis with deeply invaginated pleural folds, which may disappear during grossing
Microscopic (histologic) description
  • Pleural fibrosis and invagination (use elastic stains to highlight) and atelectasis