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Case 9.16 

Case 9.16
Case 9.16

Christine U. Lee

, and James F. Glockner

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date: 21 September 2020

54-year-old woman with a history of epigastric pain. MRA was requested to assess for mesenteric ischemia

Coronal SSFSE images (Figure 9.16.1) demonstrate a dilated, fluid-filled appendix without appreciable periappendiceal inflammation.

Appendiceal mucocele

Appendiceal mucocele is a generic term describing an appendix distended by mucus. A rare condition, appendiceal mucocele has a prevalence of 0.2% to 0.3% in appendectomy specimens. Mucoceles have been divided into 4 histologic subtypes: mucus retention cyst (the diagnosis in this case), mucosal hyperplasia, mucinous cystadenoma, and invasive mucinous cystadenocarcinoma. Most benign mucoceles are asymptomatic and are incidental findings at abdominal imaging or physical examination. Lesions may become symptomatic with superinfection, intussusception, or torsion....

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