[What's new in dermatology?].

Skin diseases have been the focus of many innovations in the last decade. These innovations are mainly in the classification of skin diseases (primarily due to the dramatic development of research into the genetics of skin diseases, but not only because of this element), a new understanding of the processes underlying various diseases, improvements in diagnosis and innovations in drug treatment. In the current issue of "Harefuah", we review some advances in the field of skin diseases discovered in recent years. We review psoriasis as a multi-system disease, describe new insights into polyarteritis nodosa, parapsoriasis, autoinflammatory syndromes, and pustular psoriasis of pregnancy (impetigo herpetiformis). We also describe the new immunotherapy for metastatic melanoma. Dermatology aLso has new technological developments, especially the in vivo reflected mode confocal laser microscopy. We describe in detail the use of this technique in dermatology.