A case report of urachal abscess: a rare differential in adult abdominal pain.

A 59-year-old woman presents with decreased appetite and abdominal pain. Her symptoms lead to lethargy and weakness. Abdominal pain is a common presentation in the primary care and emergency room setting. She was initially diagnosed with an abscess and treated with antibiotics and drainage. Upon further evaluation and cystoscopy she was discovered to have a urachal cyst. Urachal cysts are extremely rare and even more uncommon in adults, as it is usually diagnosed in children. It is an important diagnosis not to miss in the differential of adult abdominal pain as surgical intervention is often necessary for treatment. This case highlights urachal cyst as a rare and serious differential of adult abdominal pain.