Two cases of adult mature teratoma perforating the lung

Abstract

We report two cases of mature teratoma perforating the lung. Case 1: A 19-year-old woman complained of chest pain. Chest CT revealed an anterior mediastinal tumor. Surgery was performed and the tumor was strongly adhered to the right upper lobe. Extirpation was performed with a right lung partial resection. Histological findings showed a mature teratoma with many pancreatic tissue glands. Case 2: A 35-year-old women experienced right chest pain and hemosputum. Chest X-ray showed a large mass in the right middle lung field. Chest CT showed a cystic tumor in the anterior mediastinum. Chest MRI revealed that the cystic tumor contained a fatty component suggestive of mature teratoma. In the surgical findings, the tumor had perforated the right lung and extirpated the right middle lobe. There are a very variety symptoms in adult mature teratomas. In some cases, a definite diagnosis is very difficult. In our case, MRI findings were effective for an accurate diagnosis and surgical treatment.