Yaman, TuranKarasu, AbdullahUyar, AhmetKuscu, YagmurKeles, Omer Faruk2024-09-182024-09-1820191040-63871943-4936https://doi.org/10.1177/1040638719830464https://hdl.handle.net/20.500.12483/8649A 1-mo-old Ivesi male lamb was presented with 2 large red masses on the skin of the left ear. The tumors were removed using gentle dissection and submitted for histologic evaluation. The tumors consisted of numerous thin-walled capillaries lined by endothelial cells and nests of stromal cells. Immunohistochemically, the endothelial cells were positive for CD45, and the stromal cells were positive for neuron-specific enolase. GFAP-positive cells were occasionally present within the tumor. Endothelial and stromal cells were negative for S100, CD34, CD31, and factor VIII-related antigen. The tumor had strong gross, microscopic, and immunohistochemical similarities with human extraneural hemangioblastoma.eninfo:eu-repo/semantics/openAccessCD45glial fibrillary acidic proteinhemangioblastomalambsneuron-specific enolaseArticle31226326610.1177/1040638719830464307740212-s2.0-85061790027Q1WOS:000460913600016Q3