Beck, S L Mucinous appendiceal cystadenoma complicated by torsion presenting as a retroperitoneal mass. [electronic resource] - The Journal of the American Osteopathic Association Mar 1987 - 240-4 p. digital Publication Type: Case Reports; Journal Article ISSN: 0098-6151 Subjects--Topical Terms: AgedAppendiceal Neoplasms--diagnosisCystadenoma--diagnosisDiagnosis, DifferentialHumansMaleMucocele--diagnosisRetroperitoneal Neoplasms--diagnosisTorsion Abnormality