“…Hereditary CL includes X‐linked CL (XRCL; MIM: 304150), autosomal dominant CL (ADCL; MIM:123700), and autosomal recessive CL (ARCL). To date, 12 different causative genes have been identified: ATP7A responsible for XRCL (i.e., occipital horn disease) and 11 associated with the two autosomal inheritance patterns, including ATP6V1A , ATP6V1E1 , ELN , FBNL5 , FBNL4 , LTBP4 , ATP6V0A2 , PYCR1 , ALDH18A1 , GORAB , and RIN2 (Basel‐Vanagaite et al, 2009; Baumgartner et al, 2000; Hennies et al, 2008; Kantaputra & Kaewgahya, 2014; Kornak et al, 2008; Markova et al, 2003; Reversade et al, 2009; Urban et al, 2009; Van Damme et al, 2017; Van Damme, Gardeitchik, & Mohamed, 2017; Van Maldergem et al, 1988; Zhang et al, 1999). Of the three genetic forms of CL, ARCL is usually associated with the most severe phenotype and include three main subtypes: ARCL1 caused by FBLN5 (i.e., ARCL1A), EFEMP2/FBLN4 (i.e., ARCL1B) and LTBP4 (i.e., ARCL1C); ARCL2 due to ATP6V0A2 (i.e., ARCL2A), PYCR1 (i.e., ARCL2B), ATP6V1E1 (i.e., ARCL2C) and ATP6V1A (i.e., ARCL2D); and ARCL3 (a.k.a., De Barsy syndrome) caused by ALDH18A1 (i.e., ARCL3A) and PYCR1 (i.e., ARCL3B).…”