A few months ago, we welcomed 8 Jai, an 11-year-old American Shorthair, to our hospital. He had a mass in the duodenum, which we confirmed through ultrasound and CT scan. Both the pet parents and Dr. Elaine were concerned, as masses in the digestive tract are usually malignant. As such, endoscopy was used to confirm Dr. Elaine suspicion of a benign polyp, an uncommon condition: having enough information is crucial to draw up a suitable and effective treatment plan.