Lung - nontumor
Other nonneoplastic disease

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

Revised: 9 March 2017, last major update October 2011

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

PubMed search: pulmonary endometriosis [title]

Cite this page: Endometriosis. website. Accessed October 19th, 2018.
Definition / general
  • Endometrial glands and stroma rarely are present in lung, bronchi, pleura or diaphragm
  • Likely hematogenous in origin
  • Nodular or cystic masses or "burned out" lesions
  • Decidualization may occur
  • Pneumothorax is common, right sided much more common than left sided
  • Hemoptysis, pain or shortness of breath associated with menstruation or asymptomatic nodules
  • Right sided catmenial (menstrual) hemothorax may occur, usually in association with severe pelvic disease
  • Diagnosis: bronchoalveolar lavage
Differential diagnosis