IGHG1 and hairy cell leukemia: In patient BMA16, referred for hairy cell leukemia, OGM detected a balanced translocation between chromosomes 14 and 17 (ogm[GRCh37]t(14;17)(q32.22;q2106,249,815;80,915,618)) that includes IGHG1 with a disputable breakpoint (Fig. 2).