Paravertebral mediastinal Mullerian cyst resected by video assisted thoracoscopic surgery.

Ever since Hattori et al. had described the mediastinal Mullerian cyst in 2005 there has been several new cases described in the literature. We report a 51-year-old woman with an incidentally found 2 cm × 3 cm mass in her left paravertebral mediastinum. She underwent thoracoscopic removal with the impression of a neurogenic tumor and was unexpectedly found with a ciliated cyst of Mullerian origin.