GJB2 and Hodgkins lymphoma: Houseman and coworkers [16] analysed HL patients heterozygous for c.101T>C (p.Met34Thr), in which no second GJB2 coding mutation had been detected, and identified a monoallelic 10 bp deletion, c.-684_-675del (firstly designated -493del10), upstream of the basal promoter.