title: A serious side-effect of etretinate (Tigason).
mesh_terms: D000328:Adult; D005050:Etretinate / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007057:Ichthyosis / Q000188:drug therapy; D009999:Ossification, Heterotopic / Q000139:chemically induced*; D011859:Radiography; D011877:Radionuclide Imaging; D011884:Radius / Q000000981:diagnostic imaging; D014457:Ulna / Q000000981:diagnostic imaging
chemical_list: D005050:Etretinate