title: Gallbladder halo sign: emphysematous cholecystitis caused by cystic duct obstruction.
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Medicine at Northwestern University Feinberg School of Medicine, Chicago, Illinois.
authors.forename: Rena
authors.initials: R
authors.lastname: Yadlapati
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Medicine at Northwestern University Feinberg School of Medicine, Chicago, Illinois.
authors.forename: Ryan
authors.initials: R
authors.lastname: Law
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Medicine at Northwestern University Feinberg School of Medicine, Chicago, Illinois.
authors.forename: Srinadh
authors.initials: S
authors.lastname: Komanduri
mesh_terms: D000368:Aged; D002779:Cholestasis / Q000150:complications* / Q000473:pathology; D003549:Cystic Duct / Q000473:pathology*; D041882:Emphysematous Cholecystitis / Q000175:diagnosis* / Q000473:pathology; D005704:Gallbladder / Q000473:pathology*; D006801:Humans; D008297:Male; D011860:Radiography, Abdominal; D014057:Tomography, X-Ray Computed