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Article
June 1974

Idiopathic Pigmentation of the Upper Back

Arch Dermatol. 1974;109(6):910. doi:10.1001/archderm.1974.01630060078026
Abstract

To the Editor.—  In the January 1974 issue of the Archives, El Zawahry1 described a group of patients with "idiopathic pigmentation of the upper back," ignored a number of pertinent references, and erroneously concluded that he was describing a new syndrome.I would like to draw attention to the 1969 report of Gibbs and Frank2 describing a similar group of patients with macular lesions of the back.In 1970, Shanon and Sagher3 described a similar eruption in patients with interscapular cutaneous amyloidosis and mentioned that in a group of 16 patients, in whom the same clinical picture of a pigmented reticular dermatosis on the back was observed, amyloid was not demonstrated in biopsy specimens of the affected area.In 1972, Hashimoto and I4 described a group of patients with macular amyloidosis, some of them showing the same clinical picture as described by El Zawahry. We also

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