Incidence of pyloric gland adenoma located within the gallbladder.

Pyloric gland adenoma (PGA) of the gallbladder is a rare benign epithelial tumor with potential for malignant transformation. PGAs represent the most common histologic subtype of gallbladder adenomas and are frequently associated with chronic inflammation. Although often incidental findings, their malignant potential warrants careful histopathologic evaluation and consideration for surveillance or surgical management. We present the case of a 64-year-old man with a 30-year history of episodic epigastric pain radiating to the right abdomen and back. Abdominal ultrasound revealed a stalked lesion communicating with the gallbladder, confirmed as a PGA on final pathology after robotic-assisted laparoscopic cholecystectomy.