Paraganglioma of the gallbladder.
D000368:Aged; D005704:Gallbladder / Q000473:pathology; D005706:Gallbladder Neoplasms / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D010235:Paraganglioma / Q000473:pathology / Q000601:surgery