“…Histopathological examination is needed to confirm diagnosis [ 6 ]. Due to its non-specific symptoms, several cases of teratoma have been misdiagnosed as neuroblastoma, pleural tuberculosis, thymoma, and empyema [ [7] , [8] , [9] ]. Due to the proximity of important thoracic structures, surgical resection is challenging [ 10 ], but the postoperative prognosis of mature teratomas is generally good in children, with a survival rate exceeding 96 % [ 11 ].…”