What is notalgia paresthetica?

Notalgia paresthetica is an acquired unilateral localized form of pruritus that develops near the inferomedial border of either scapula. The skin typically appears normal, although some patients demonstrate subtle hyperpigmentation secondary to repeated rubbing or excoriation. The cause is not understood, although there is substantial evidence to suggest that it is due to spinal nerve impingement. Occasional cases have been familial, and the term “hereditary localized pruritus” has been applied to this variant. The management typically consists of topical capsaicin cream or topical preparations containing lidocaine.

Savk O, Savk E: Investigation of spinal pathology in notalgia paresthetica, J Am Acad Dermatol 52:1085–1087, 2005.