A 4-year-old MN Pomeranian was presented for evaluation of lethargy, decreased appetite, and vomiting. A barium study had shown no specific findings and the patient was treated with Cerenia, metronidazole, and subcutaneous fluids. On physical examination dehydration and pain on palpation of L5-L6 and L6-L7 was present. Abnormalities on CBC and serum biochemistry were neutrophilia, mildly elevated AST activity, hyponatremia, hyperkalemia, and hypochloremia. The patient was given a Depo Medrol injection 6 days prior to the ultrasound.