A case of Müllerian duct cyst in the posterior mediastinum

Abstract

We report a case of Müllerian duct cyst in the posterior mediastinum successfully resected by thoracoscopic surgery. A female in her forties was found to have a tumor in the left paravertebral area on Th3. The patient underwent thoracoscopic resection of the tumor. Pathological examination showed a benign cyst that was positive for both estrogen and progesterone receptors on immunohistochemical examination. We review the embryogenesis and pathologic characteristics of Müllerian cysts.