Dermatology Eponyms – sign –Lexicon (O)

Eponyms are used almost daily in the clinical practice of dermatology. And yet, information about the person behind\udthe eponyms is difficult to find. Indeed, who is? What is this person’s nationality? Is this person alive or dead? How\udcan one find the paper in which this person first described the disease? Eponyms are used to describe not only disease,\udbut also clinical signs, surgical procedures, staining techniques, pharmacological formulations, and even pieces of\udequipment. In this article we present the symptoms starting with (O) and other. The symptoms and their synonyms,\udand those who have described this symptom or phenomenon