Fig. 1

Expression profile of the different somatostatin receptor (SSTR) subtypes and of the CXCR4 chemokine receptor in hepatocellular (HCC) and cholangiocellular (CCC) carcinomas. a Percentage and number of positive cases for the different SSTRs and for CXCR4. Tumors were only considered positive at IRS values ≥3. b Box plots of the expression levels (IRS values) of SSTRs and CXCR4 in HCC and in CCC. Depicted are median values, upper and lower quartiles, minimum and maximum values, as well as outliers. Outliers are defined as follows: circles: mild outliers; data that fall between 1.5 and 3 times above the upper quartile or below the lower quartile; asterisks: extreme outliers; data that fall more than 3 times above the upper quartile or below the lower quartile