preferred_name: Specimen from ampulla of Vater obtained by pancreaticoduodenectomy
preferred_name_lc: specimen from ampulla of vater obtained by pancreaticoduodenectomy
label: Specimen from ampulla of Vater obtained by pancreaticoduodenectomy (specimen)
label_lc: specimen from ampulla of vater obtained by pancreaticoduodenectomy (specimen)