CancersNeoplasmNeoplasm by Special CategoryMalignant NeoplasmMalignant Digestive System NeoplasmDigestive System CarcinomaDigestive System Undifferentiated CarcinomaSmall Intestinal Undifferentiated CarcinomaAmpulla of Vater Undifferentiated CarcinomaSubtypeAmpulla of Vater Undifferentiated CarcinomaCI-CAN-00007210Explore in graph →NCItC27419 OverviewStatisticsSurvivalGenomicsVariants & evidenceDrugsTrialsResearchRankingsSources & provenance