A rare tumor metastasis of bilateral lung: Epithelioid trophoblastic tumor

A 44-year-old female patient with a history of a gestational trophoblastic tumor surgery was referred to our clinic upon detection of cystic-cavitary lesion showing slow progression in both lungs. It was decided to perform bilateral surgery in the patient for diagnosis and treatment purposes; first, left upper lobectomy and one month later, right lower lobectomy were applied. Histopathological examination results of the specimens obtained during both operations reported an "epithelioid trophoblastic tumor" metastasis. Aspergilloma was also noted in the tumor in left upper lobe at the same time. Epithelioid trophoblastic tumors, a very rare member of gestational trophoblastic tumors, can achieve distant organ metastasis. Surgical treatment remains important in these cases, which are mostly resistant to chemotherapy.