{"paper_id":"9b675eb1-6046-4ab9-b9ff-1f98be47be3b","body_text":"Abstract\nWe present here a rare case of left-side catamenial pneumothorax, in which endometrial tissue pleura was found on the visceral pleura histologically. A chest roentogenogram confirmed the left pneumothorax, but did not reveal bullae or any associated anomalies, in a 41-year-old woman with three documented episodes of left-side pneumothorax occurring every menstruation. Video-assisted thoracoscopic surgery revealed not only tiny holes in the diaphragm, but also a scattered small brown spots on the visceral pleura. Histological examination of the lung sections revealed the existence of endometrial tissue on the visceral pleura with disrupted pleural elastic fibers. Our case suggests that cyclic erosion of the visceral pleura by the implanted endometrial tissue caused air leakage from the lung, in addition to the most accepted concept that air is aspirated into the thoracic cavity via the abdomen through the acquired fenestration of the diaphragm.\nSimilar content being viewed by others\nReferences\nAlifano M, Roth T, Broet SC, Schussler O, Magdeleinat P, Regnard JF. Catamenial pneumothorax: A prospective study. Chest 2003; 124: 1004–8s.\nBagan P, Le Pimpec Barthes F, Assouad J, Souilamas R, Riquet M. Catamenial pneumothorax: Retrospective study of surgical treatment. Ann Thorac Surg 2003; 75: 378–81.\nKorom S, Canyurt H, Missbach A, Schneiter D, Kurrer MO, Haller U, et al. Catamenial pneumothorax revisited: Clinical approach and systemic review of the literature. J Thorac Cardiovasc Surg 2004; 128: 502–8.\nSakamoto K, Ohmori T, Takei H. Catamenial pneumothorax caused by endometriosis in the visceral pleura. Ann Thorac Surg 2003; 76: 290–1.\nMaurer ER, Schaal JA, Mendez FL Jr. Chronic recurring spontaneous pneumothorax due to endometriosis of the diaphragm. J Am Med Assoc 1958; 168: 2013–4.\nAuthor information\nAuthors and Affiliations\nRights and permissions\nAbout this article\nCite this article\nSuzuki, S., Yasuda, K., Matsumura, Y. et al. Left-side Catamenial Pneumothorax with Endometrial Tissue on the Visceral Pleura. Jpn J Thorac Caridovasc Surg 54, 225–227 (2006). https://doi.org/10.1007/BF03397156\nReceived:\nAccepted:\nPublished:\nIssue date:\nDOI: https://doi.org/10.1007/BF03397156","source_license":"CC0","license_restricted":false}