01/01/2025
This was a 13-year-old cat with acute onset weight loss and poor appetite. The mass is hypoechoic, heterogenous, and irregularly shaped, with hyperechoic surrounding mesentery and a small amount of free fluid. The appearance and location of the mass at the pyloroduodenal junction makes carcinoma of the pancreatic body the top differential. The adjacent discrete hypoechoic nodule may be metastasis to the mesentery which is common with pancreatic carcinoma.