Endometriosis of the lung diagnosed with videothoracoscopy

A case of non symptomatic pulmonary endometriosis appearing as multiple nodules on chest X ray and chest CT scan is reported. 43 year old woman was admitted to surgical department because of suspicion of neoplastic dissemination of unknown origin. Non invasive diagnostic procedures were not effective. Diagnosis of pulmonary endometriosis was established with thoracoscopy with lung sampling, confirmed with histopathologic evidence.