title: Pseudoxanthoma elasticum and polyposis coli: a novel co-mutation.
abstract: Pseudoxanthoma elasticum and polyposis coli are inherited conditions not, to our knowledge, previously reported to coexist. The spontaneous appearance of both conditions in a 62-year-old woman may represent a novel mutation. The defective cell in both pseudoxanthoma and some of the extracolonic manifestations of Gardner's syndrome is the fibroblast; therefore, this case may represent a unique variation of Gardner's syndrome.
mesh_terms: D003110:Colonic Neoplasms / Q000150:complications* / Q000235:genetics; D005260:Female; D006801:Humans; D008875:Middle Aged; D009154:Mutation; D011127:Polyps / Q000150:complications* / Q000235:genetics; D011561:Pseudoxanthoma Elasticum / Q000150:complications* / Q000235:genetics