We present a man, with a complex medical and surgical history, who had a large pelvic non-appendiceal cystadenoma, presenting as a cystic sacral mass causing obstructive urinary symptoms and renal failure. Mucocele should be included in the differential diagnosis of patients who present with large sacral masses, and who have a significant history of pelvic and abdominal surgery and inflammatory bowel disease.
Keywords: Complication; Crohn’s disease; Mucinous cystadenoma; Sacrum; Spine; Surgery.
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