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Localized hyperpigmentation and pruritus on the upper back
Author(s) -
PeñaPenabad C.,
GonzalezAsensio M.P.,
GarcíaSilva J.,
Armijo M.
Publication year - 1994
Publication title -
journal of the european academy of dermatology and venereology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.655
H-Index - 107
eISSN - 1468-3083
pISSN - 0926-9959
DOI - 10.1111/j.1468-3083.1994.tb00365.x
Subject(s) - medicine , hyperpigmentation , dermatology , differential diagnosis , amyloidosis , pigmentation disorder , skin hyperpigmentation , puva therapy , pathology , psoriasis
This retrospective study of 28 patients with pruritus and hyperpigmentation located on the upper half of the back, without involvement of other skin areas, includes 8 cases of macular amyloidosis, four neurodermatitis and 16 compatible with what has been described as notalgia paresthetica (NP). With the exception of the amyloid deposition, we did not find histopathological data that differentiated between macular amyloidosis and NP, since in both processes we found necrotic keratinocytes and melanophages. The differential diagnosis and the current nosological situation of the hyperpigmentation localized on the upper back are reviewed. A diagnostic protocol is proposed.