CancersNeoplasmNeoplasm by Special CategoryMalignant NeoplasmSecondary Malignant NeoplasmMalignant Neoplasm of Unknown PrimaryCarcinoma of Unknown PrimarySquamous Cell Carcinoma of Unknown PrimaryHistologySquamous Cell Carcinoma of Unknown PrimaryCI-CAN-00006833Explore in graph →7 active trialsNCItC8099 OverviewStatisticsSurvivalGenomicsVariants & evidenceDrugsTrials14ResearchRankingsSources & provenance