ABCC6 and Pseudoxanthoma elasticum: Another patient in our cohort also harbors a CV in another gene with CV described by them, ABCC6. Although it is not the same variant (our patient harbors the ABCC6 rs72653706, and theirs harbors the ABCC6 rs63750759), both are classified as pathogenic and associated with Pseudoxanthoma Elasticum (Bergen et al., 2000).