title: Paravertebral ossification in psoriatic arthritis.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000150:complications*; D001623:Betamethasone / Q000627:therapeutic use; D003937:Diagnosis, Differential; D006801:Humans; D066298:In Vitro Techniques; D008161:Lumbosacral Region / Q000473:pathology; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000209:etiology*; D011241:Prednisone / Q000627:therapeutic use; D011565:Psoriasis / Q000150:complications* / Q000473:pathology*; D011859:Radiography; D012217:Rheumatoid Factor; D013122:Spinal Diseases / Q000175:diagnosis*; D013128:Spinal Osteophytosis / Q000175:diagnosis; D013167:Spondylitis, Ankylosing / Q000175:diagnosis; D013904:Thoracic Vertebrae / Q000473:pathology
chemical_list: D012217:Rheumatoid Factor; D001623:Betamethasone; D011241:Prednisone