[What's new in internal medicine?].

This paper summarizes a review of the medical literature focused on the field of internal medicine and dermatology, particularly cutaneous lupus erythematosus, dermatomyositis, cutaneous sarcoidosis, systemic sclerosis and cutaneous scleroderma, from September 2011 to October 2012. Our objective was to select the main articles that bring new information and significant advances useful for the dermatologist and internist in their daily practice and for the pathophysiological understanding of these affections. Thus, recent advances in the field of the following diseases were selected: cutaneous lupus erythematosus, sarcoidosis and systemic sclerosis treatments, neutrophilic dermatosis associated with lupus erythematosus, NETosis mechanism and myositis autoantibodies associated with dermatomyositis.