Male, 8 years old. Forearm cellulitis. Subcutaneous edema involving the ulnar and volar soft tissues of the elbow and forearm, compatible with cellulitis. Edema extends around the distal brachialis muscle, indicating myositis. No discrete fluid collection is identified. Many sequences are limited by motion, but bone marrow signal and cortical margins appear grossly normal. No significant joint effusion.
Cellulitis and evidence of myositis, without evidence of joint effusion or osteomyelitis. See follow-up postcontrast study for additional findings.