CD24 and carcinoid tumor: CD24 expression was detected in the membrane and cytoplasm of most cancers, including THCA, HNSC, TGCT, CESC, STAD, BLCA, ovarian serous cystadenocarcinoma (OV), LUAD, LUSC, prostate adenocarcinoma (PRAD), kidney chromophobe (KICH), KIRC, KIRP, UCEC, PAAD, BRCA, lymphoma, GBM, skin cancer, COAD, LIHC, carcinoids, and SKCM (Figure 4).