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We present an unusual case of metastatic choriocarcinoma in a patient whose visual symptoms led to diagnosis and treatment of his underlying malignancy. He presented with vision loss and a visual field defect in his left eye, representing a choroidal mass and large exudative retinal detachment. In addition, metastatic investigation revealed abdominal, chest, and brain metastases. Metastatic choriocarcinoma was suspected because of an elevated β-human chorionic gonadotrophin (HCG), and the diagnosis was confirmed by fine needle aspiration of one pulmonary mass. A retroperitoneal mass was identified as the primary site, which is the first reported case of metastatic choriocarcinoma from the retroperitoneum.
A 34 year old man presented initially to his physician with complaints of back pain and pain with coughing for 2 years. Abdominal computed tomograph (CT) scan revealed a retroperitoneal mass with an elevated β-HCG level to 137 420. …