後縦隔ミュラー管嚢胞の３切除例

Mullerian cysts in the posterior mediastinum are cystic lesions that occur near the spine in females, and they are considered relatively rare with few reported cases. We encountered three cases of Mullerian cysts in the posterior mediastinum. Case 1 was a 42-year-old female who was diagnosed with a right ovarian endometriotic cyst after surgery in our department. Case 2 was a 34-year-old female with no previous medical history. Case 3 was a 40-year-old female with a history of taking low-dose oral contraceptives with no previous medical history. All cases underwent thoracoscopic resection of cystic lesions, and immunohistochemical staining confirmed the diagnosis of Mullerian cysts in the posterior mediastinum. The results at our institution suggest that Mullerian cysts in the posterior mediastinum may not be as rare as previously thought. Additionally, we investigated the relationship between Mullerian cysts in the posterior mediastinum and anti-Mullerian hormone（AMH） in one case. We report our case, along with the relevant literature.