Mór Kaposi was a Hungarian dermatologist born on March 28, 1837, and he passed away on June 29, 1902. He is best known for his work in the field of skin diseases and for describing Kaposi's sarcoma, a type of cancer that often appears as lesions on the skin. His research contributed significantly to the understanding of various dermatological conditions. Kaposi's sarcoma is particularly associated with HIV/AIDS and is characterized by the growth of tumors in the skin, lymph nodes, and other organs. Kaposi's contributions to dermatology have had a lasting impact, and his name is still recognized in medical literature today.