title: [Ultrasonic diagnosis of acute gangrenous cholecystitis and pericholecystic abscess].
mesh_terms: D000038:Abscess / Q000175:diagnosis*; D000208:Acute Disease; D000368:Aged; D002764:Cholecystitis / Q000175:diagnosis*; D005260:Female; D005704:Gallbladder / Q000473:pathology; D005705:Gallbladder Diseases / Q000175:diagnosis*; D006801:Humans; D009336:Necrosis; D014463:Ultrasonography