The chi-square test results indicated that the HB patients showing epithelial histology (n = 5) had an increase in CPT1a expression in tumour tissue compared to non-tumour tissue, while all samples showing mixed histology (n = 7) had a decrease in CPT1a expression in tumour tissue compared to non-tumour tissue (p < 0.05). This evidence concerns the gene CPT1A and hemoglobin measurement.