Multicentric reticulohistiocytosis is a rare granulomatous disease of unknown etiology, characterized by cutaneous nodules and destructive arthritis. Skin lesions can cause significant deformity, and approximately half of affected patients develop a severe disabling arthritis. The disease is often associated with malignancy; however, the paraneoplastic nature of multicentric reticulohistiocytosis is not established. The diagnosis is confirmed by the presence of oncocytic ("ground-glass") histiocytes and multinucleated giant cells on histopathology of the cutaneous nodules and the synovial membrane.

Of the 300 completed surveys returned, 33 (11%) reported ever having been sued. Physicians who practiced Mohs surgery for a longer period of time were more likely to have been sued for malpractice. Physicians reported the wrong site and functional outcome as the most frequent causes of malpractice lawsuits.

The characteristics of current Mohs surgery practices in the United States provides useful data for training programs, potential trainees, workforce issues, statistical modeling systems, and Mohs surgeons in the evaluation of their own practices.