“…[1][2][3][4] German shepherd dogs, golden retrievers, Labrador retrievers, and schnauzers appear to be predisposed. 5,6 Canine noncutaneous HSA is typically a highly malignant tumor, frequently metastasizing to distant organs such as the liver, lungs, heart, skin, and central nervous system. 7,8 Many patients present with internal bleeding due to tumor rupture or disseminated intravascular coagulation.…”