What are vascular splenic neoplasms?

• The most common non-lymphoid primary tumour of the spleen. 1. The benign vascular tumours are: haemangioma, lymphangioma, and peliosis. 2. Splenic lesions with intermediate biological behaviour include littoral cell angioma, Kaposi sarcoma and hemangioendothelioma. 3. The main primary malignant splenic vascular lesion is angiosarcoma.