Yaman, TuranKarasu, AbdullahUyar, AhmetKuscu, YagmurKeles, Omer Faruk2025-05-102025-05-1020191040-63871943-493610.1177/10406387198304642-s2.0-85061790027https://doi.org/10.1177/1040638719830464https://hdl.handle.net/20.500.14720/13581A 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 EnolaseArticle312Q2Q126326630774021WOS:000460913600016