Ruptured arteriovenous malformation secondary to placental site trophoblastic tumor: A diagnostic dilemma and its successful management

Placental site trophoblastic tumor is a very rare neoplasm and is a subtype of gestational trophoblastic neoplasm. Owing to its rarity and varied clinical manifestations, it can lead to a diagnostic dilemma. We report a very rare case of PSTT presenting as massive hemoperitoneum caused by rupture of secondary arteriovenous malformation. MR angiogram revealed the presence of arteriovenous malformation and the diagnosis of the neoplasm was confirmed on histopathology and immunohistochemistry. Hysterectomy was done and the patient was managed successfully. Keywords: Placental site trophoblastic tumor, Arteriovenous malformation, Hemoperitoneum, Embolisation, Immunohistochemistry