Lung - nontumor
Other nonneoplastic disease

Topic Completed: 1 October 2011

Revised: 30 January 2019, last major update October 2011

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

PubMed search: pulmonary endometriosis [title]

Elliot Weisenberg, M.D.
Page views in 2019: 168
Page views in 2020 to date: 101
Cite this page: Weisenberg E. Endometriosis. website. Accessed May 28th, 2020.
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
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