Endometriosis is an insidious, silent disease often associated with symptoms such as pelvic pain and intense cramps, irregular uterine bleeding or dyspareunia. Some patients may develop over time chest pain, rapid heartbeat, pain lying down, dizziness, shortness of breath, abdominal pain, hemoptysis which occur periodically a few days before or/and during menstruation [1]. Thoracic endometriosis is a chronic disease and leads to numerous complications [2]. Because of its rarity, it may be overlooked, resulting in a delay in diagnosis. Imaging tests such as computed tomography and magnetic resonance imaging, immunohistochemical pleural fluid analysis can confirm the presence of hormone receptor-positive endometrial glands and stroma [3].