PTPRJ loss of heterozygosity (LOH) has been reported in several cancers such as colon, breast, thyroid, meningioma, non-Hodgkin lymphoma and cervical carcinoma (Ruivenkamp et al. 2003; Iuliano et al. 2010; Aya-Bonilla et al. 2013; Yan et al. 2015). This evidence concerns the gene PTPRJ and cancer.