biliary tract benign neoplasm +
papilloma +

ampulla of Vater benign neoplasm +
atypical choroid plexus papilloma
bile duct adenoma +
bile duct cystadenoma +
biliary tract intraductal papillary mucinous neoplasm
breast duct papilloma +
cervix squamous papilloma
choroid plexus papilloma
common bile duct neoplasm
ethmoid sinus inverted papilloma
extrahepatic bile duct leiomyoma
extrahepatic bile duct lipoma
frontal sinus inverted papilloma
gallbladder benign neoplasm +
gallbladder papillomatosis
intraductal papilloma
inverted papilloma
maxillary sinus inverted papilloma
nasal vestibule papilloma
renal pelvis inverted papilloma
serous surface papilloma
skin papilloma +
sphenoid sinus inverted papilloma
squamous cell papilloma
transitional papilloma +
ureter inverted papilloma
urethra inverted papilloma
urinary bladder inverted papilloma
urinary tract papillary transitional cell benign neoplasm +
verrucous papilloma

extrahepatic biliary papillomatosis
intrahepatic biliary papillomatosis