PT - JOURNAL ARTICLE AU - Aljehani, Yasser TI - Catamenial pneumothorax. Is it time to approach differently? DP - 2014 Feb 01 TA - Saudi Medical Journal PG - 115--122 VI - 35 IP - 2 4099 - http://smj.org.sa/content/35/2/115.short 4100 - http://smj.org.sa/content/35/2/115.full SO - Saudi Med J2014 Feb 01; 35 AB - Catamenial pneumothorax CP was considered a rare clinical entity that has gained tremendous interest recently. It is commonly overlooked, misdiagnosed, or under diagnosed. It is part of the thoracic endometriosis syndrome, which includes catamenial hemothorax, catamenial hemoptysis, and pulmonary endometriosis. These represent the spectrum of ectopic pelvic endometriosis. The presentation is variable leading to difficulty in developing a standardized approach to diagnosis and management. This review discusses the pathogenesis of these entities and the novel methods of investigation, management, and clinical protocols.