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ORD characterizes a rare or orphan disease as a disease or condition that affects fewer than 200,000 persons. Since endometriosis effects millions of women worldwide, I believe the lung consortions which have been contacted to determine worldwide numbers will soon prove Catamenial Pneumothorax is under recognized and under diagnosed. Literature research and all related information can be obtained at
and most recent articles on CP
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Endometriosis is Estrogen driven and responds to a woman's hormonal cycle. Endometrial Implants found in other areas of the body bleed monthly. There are currently 3 theories as to why this occurs, and there is no cure. (Halban's Theory) Vascular/Lymph transmission, menses flows backwards allowing endometriol cells to enter the colon and chest. (Meye's Theory) also known as coelmic metaplasia states cells can change from one type to another, but arise from the same embryologic origin or precursor. The third is trauma or manipulation of the uterine tissue causes endometriol tissue to migrate through blood vessels. In 2006, the World Endometriosis Research Foundation was launched. The Foundation is a registered charity in the United Kingdom, but will operate globally. This global endometriosis project is initiated jointly by three professional organizations: The American Society for Reproductive Medicine (ASRM), the European Society for Human Reproduction and Embryology (ESHRE) and the World Endometriosis Society (WES). Congratulations to Lone Hummelshoj nominated as Chief Executive.