title: Image of the month. Retroperitoneal retained gallstone.
authors.affiliation: General Surgery Residency Program, Division of General Surgery, Department of Surgery, St. Joseph Mercy Oakland, Pontiac, Michigan 48341, USA. drmiral80@yahoo.com
authors.forename: Miral
authors.initials: M
authors.lastname: Amin
authors.forename: Egbert
authors.initials: E
authors.lastname: Liquete
authors.forename: Amy
authors.initials: A
authors.lastname: Braddock
authors.forename: Robert B
authors.initials: RB
authors.lastname: Robinson
mesh_terms: D018784:Abdominal Abscess / Q000209:etiology / Q000517:prevention & control* / Q000601:surgery; D000368:Aged; D002763:Cholecystectomy / Q000295:instrumentation / Q000379:methods*; D003937:Diagnosis, Differential; D042882:Gallstones / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery*; D006801:Humans; D008297:Male; D010533:Peritoneal Lavage; D012187:Retroperitoneal Space; D013396:Suction; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography