Healing of Erosive Disease in Multicentric Reticulohistiocytosis

A. Initial anteroposterior radiograph of the fingers of the right hand shows small skin nodules (white arrows) and interphalangeal marginal joint erosions (black arrows), extending centrally from the periphery of the joints. Note lack of periarticular osteoporosis, proliferative changes, or periosteal new bone formation. Only a few of the nodules and erosions are highlighted. B. Followup radiograph 7 years later shows dramatic improvement and reconstitution of the osseous articular surfaces, with the most pronounced changes in the index and middle finger.