Unfortunately, studies of TFR‐1 expression in canine tumours is limited to canine brain tumour (Olby, Munana, Sharp, Skeen, & Hauck, 2000), canine lymphomas (Priest, McDonough, Erb, Daddona, & Stokol, 2011) and canine malignant oronasal tumours (Ployptech et al., 2017). The gene discussed is TFRC; the disease is lymphoma.