Images in Immunotherapy and Precision Oncology: Angiosarcoma of the Spleen and Liver.

Primary splenic or hepatic angiosarcomas are ultra-rare and aggressive malignancies associated with poor prognosis. The mainstay treatments are surgical resection and chemotherapy. We report a case of angiosarcoma in a 50-year-old woman who presented with bruising, fatigue, ecchymosis, and hepatosplenomegaly. She was treated with the multi-kinase inhibitor sunitinib for 4 weeks before developing a splenic hemorrhage and succumbing. Recent studies have demonstrated the clinical benefit of immunotherapies in angiosarcomas. Additionally, sequencing techniques have showcased the diverse molecular aberrations involved in angiosarcomas, which offer opportunities for precision-matched targeted therapies such as inhibitors of the VEGF/VEGFR axis and PI3K/Akt/mTor pathway.