Circumferential Pyloric Ulcer Inducing Gastric Outlet Obstruction: A Report of a Rare Case

We present a case of a 46-year-old female who presented to the hospital with significant abdominal distension, intractable vomiting, and pre-renal acute kidney injury (AKI) secondary to hypovolemia. Blood tests revealed global electrolyte derangements and a significant drop in estimated glomerular filtration rate (eGFR) from a baseline of over 90 to 6.7. Diagnostic investigations unveiled a circumferential pyloric ulcer causing gastric outlet obstruction. This case highlights a rare but notable subtype of peptic ulceration leading to this severe clinical presentation, emphasising the importance of early diagnosis and management.