Previous reports in canine lymphomas, showed that in 95% of cases examined by Priest et al. (2011), more than 75% of the neoplastic cells expressed TFR‐1; in canine brain tumours, TFR‐1 expression was stronger in primary and metastatic tumours than in normal brain tissue (Olby et al., 2000). The gene discussed is TFRC; the disease is brain neoplasm.