title: Sonographic appearance of mucocele of the appendix.
abstract: Mucocele of the appendix is an uncommon entity infrequently diagnosed prior to surgery or autopsy. Patients may be asymptomatic or present with a palpable right lower quadrant mass and/or pain. Barium enema findings are nonspecific and include nonfilling of the appendix and occasionally mass impression on the cecum. When visualized, calcification of the rim of a right lower quadrant mass may aid in diagnosis. The sonographic appearance in two cases is presented and compared with that in three other case reports in the literature, illustrating a spectrum of sonographic findings. Differential diagnosis is discussed.
mesh_terms: D000368:Aged; D001063:Appendiceal Neoplasms / Q000150:complications; D001065:Appendix; D002429:Cecal Diseases / Q000175:diagnosis / Q000209:etiology; D003537:Cystadenoma / Q000150:complications; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000175:diagnosis* / Q000209:etiology; D014463:Ultrasonography