On the other hand, calculation of tumour burden by SEC resulted in a predominance of subjects with low SEC (almost 66%), including the four non-cirrhotic patients, while medium SEC was observed in 34% of the patients (Table 1). Most patients had AFP levels between 100 and 500 ng/ml, while approximately 25.5% presented AFP values higher than 500 ng/ml (Figure 3). Here, AFP is linked to neoplasm.