Fig. 1From: Loss of the PTCH1 tumor suppressor defines a new subset of plexiform fibromyxoma(Adapted from https://www.genecards.org and https://www.atlasgeneticsoncology.org, respectively)PTCH1 gene schematic. a PTCH1 origin on q arm of chromosome 9, b full length transcript with 24 exons and c mutant PTCH1 with deletion of exons 15–24Back to article page