First of all, we notice a heterogeneous and highly vascular mass that is infiltrating the uterus in this postpartum patient. Multiple serpiginous parauterine structures are seen.
Also, there are multiple hypervascular lung lesions, compatible with metastases. There is a voluminous and heterogeneous mass involving the right lobe of the liver, probably of the same nature.
The findings are consistent with choriocarcinoma. Accessorily, incomplete rotation of the right kidney.