title: Ultrasonographic features of primary carcinoma of the gallbladder: a diagnostic dilemma.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000473:pathology; D000368:Aged; D005260:Female; D005704:Gallbladder / Q000473:pathology; D005706:Gallbladder Neoplasms / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography