Moreover, while there is a clear consensus on the monitoring of alpha‐fetoprotein (AFP) levels in blood, the best biomarker for hepatocellular carcinoma (HCC), no recommendations exist for the monitoring of delta‐5‐aminolevulinic acid (δ‐ALA) in HT‐A patients, the most used biomarker for acute pseudo‐porphyric crisis, with significant disparities between laboratories [4, 8, 20]. Here, AFP is linked to hepatocellular carcinoma.