Successful excision of an isolated mediastinal cystic lymphangioma with bilateral thoracoscopic surgery.

Lymphangioma is a well-known benign tumor and its cystic abnormalities of the lymph vessels are predominantly congenital. Cystic lymphangioma usually occurs in the neck, axillary region, and rarely in the mediastinum, which frequently occurs in children and young adults. A 20-year-old woman had symptoms of palpitation, cough, and dyspnea during the recent 1 month. Both chest comuted tomography and magnetic resonance imaging of the chest revealed a well-defined, 13 × 10-cm cystic lesion in the anterior mediastinum. The patient underwent bilateral video-assisted thoracoscopic excision of the cyst and lymphangioma was confirmed based on histopathologic examination. Here, we report a rare case of isolated mediastinal cystic lymphangioma that was successfully excised using a minimally invasive technique.