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clinical quiz chest rash

A 51-year-old woman visits her primary care doctor to address a rash, pruritus, myalgias and muscle weakness. The rash was an erythematous blanching patch spread across her chest in a V shape. She had also noticed that her fingernail folds were red and swollen. What's your diagnosis?

An international physician group writing in the British journal Annals of the Rheumatic Diseases, has updated recommended parameters that constitute lesions in the sacroiliac joints of patients with spondyloarthritis. The definitions of capsulitis, enthesitis, fat lesion and erosion were revised and new definitions were developed for joint space enhancement, joint space fluid, fat metaplasia in an erosion cavity, ankylosis and bone bud.