1. In 1971, Nagashima reported a peculiar pruritic dermatosis he designated Prurigo pigmentosa. 2. It is sometimes considered to be a term encompassing Besnier prurigo and other conditions. 3. The most common prurigo simplex symptoms are skin nodules resembling insect bites that are intensely itchy. 4. Prurigo simplex is a pruritus disorder of the skin characterized by extremely itchy skin nodules and lesions.5. The eponymous Besnier's prurigo is named for a skin disorder that often follows infantile atopic dermatitis. 6. Rarely it may represent a genetic susceptibility to light damage ( e . g . xeroderma pigmentosum or actinic prurigo ). 7. "' Actinic prurigo "'is a common sunlight-induced, pruritic, papular or nodular skin eruption. 8. Typically, there is no known direct cause of prurigo simplex, but some factors are known to trigger or aggravate it. 9. Prurigo pigmentosa is a rare skin condition of unknown cause that affects depressed places on the chest and back like the intermammary area.10. Was a Japanese dermatologist, the first professor of dermatology at Kyorin University, who proposed the designation of " Prurigo pigmentosa ".
