Masaharu Nagashima

Masaharu Nagashima (長島 正治, Nagashima Masaharu^?, February 1929 – May 10, 2010) was a Japanese dermatologist, the first professor of dermatology at Kyorin University, who proposed the designation of Prurigo pigmentosa.

He was born in Tokyo, in February,1929. After qualification of a dentist, he graduated from Keio University and entered the Department of Dermatology and Urology in 1955. In 1961, he became assistant professor of Keio University. In 1974, he became the first professor of dermatology, Kyorin University. In 1994, he retired and died in 2010.

In 1971, Nagashima reported a peculiar pruritic dermatosis he designated Prurigo pigmentosa.^[1] In 1978, he made a report of 14 cases in English.^[2] It has come to be recognized as a clinical entity. Although it is mostly reported from Japan, it is reported also from other countries. It is characterized by itchy red papules over the trunk and neck, which fade leaving reticular pigmentation. This disorder has been more common in adult females. About one third respond to Dapsone. The cause is not known.

Prurigo Pigmentosa
Classification and external resources
ICD-10	L28.2 (ILDS L28.226)

References

• The first report:Nihon Hifuka Gakkai Zasshi 1971:81:78-91.(In Japanese)
• The first English report:Nagashima M: Prurigo pigmentosa- Clinical observations in 14 cases. J Dermatol 1978:5:61-7.
• Prurigo pigmentosa(Nagashima): in Skin Diseases described in Japan 2004 Teraki Y, Nishikawa T. Journal of German Dermotologic Association(JDDG) 1:2005:(Band 3) 9-25.
• Obituary of Masaharu Nagashima, Nihon Hifuka Gakkai Zasshi 2010,120(11), 2167-2170.

Notes

1. ^ Nagashima M. Nihon Hifuka Gakkai Zasshi 1971:81:78-91.(In Japanese)
2. ^ Nagashima M: Prurigo pigmentosa- Clinical observations in 14 cases. J Dermatol 1978:5:61-7.

Persondata
Name	Nagashima Masaharu
Alternative names
Short description
Date of birth	1929
Place of birth
Date of death	2010
Place of death