2020 Volume 32 Issue 2 Pages 140-145
A 38 year-old man who was previously diagnosed as having bronchial asthma was treated with corticosteroid over a prolonged period of time. Five years ago, he developed osteonecrosis of bilateral femoral heads. One year ago, he was referred to our hospital, because of polyarthralgia. Initially, he was diagnosed with rheumatoid arthritis and treated with anti-rheumatic drugs. His symptoms showed improvement temporarily; however, because polyarthralgia recurred subsequently, MR imaging of multiple joints was performed. The results of this study confirmed a diagnosis of multiple osteonecrosis caused by corticosteroid.