@article {Keijzere243258, author = {Seline Keijzer and Wolter Oosterhuis and Hans M Hazelbag and Tess Meuleman}, title = {Pathological diagnosis of thoracic endometriosis}, volume = {14}, number = {8}, elocation-id = {e243258}, year = {2021}, doi = {10.1136/bcr-2021-243258}, publisher = {BMJ Specialist Journals}, abstract = {A 26-year-old woman, who underwent abdominal surgery because of pelvic endometriosis, suffered from upper abdominal pain, fever and dyspnoea 2 days postoperatively. Paralytic ileus and right-sided pneumothorax were revealed. Treatment with a chest drain was not successful and, thus, a video-assisted thoracoscopic surgery was performed, revealing endometriosis-like lesions. Basic histopathology did not confirm the visual diagnosis, but additional immunohistochemical staining for oestrogen and progesterone receptors showed positive reaction in epithelial lung cells, thus proved the diagnosis thoracic endometriosis. A resection of the apex of the right upper lobe and pleurodesis by talc poudrage was performed after which a mesh graft was applied on the diaphragm. After 5 years of follow-up, no recurrent pneumothorax occurred.}, URL = {https://casereports.bmj.com/content/14/8/e243258}, eprint = {https://casereports.bmj.com/content/14/8/e243258.full.pdf}, journal = {BMJ Case Reports CP} }