Immune-mediated thrombocytopenia in a 4-month-old German shepherd dog

A 4-month-old, intact female, German shepherd dog exhibited a painful abdomen and lethargy. Immune-mediated thrombocytopenia was diagnosed and initial remission attained using prednisone. Upon relapse, prednisone and vincristine together were unsuccessful in achieving remission. This case is unique due to the young age of the dog.