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
Brownstein MH. Idiopathic Pigmentation of the Upper Back. Arch Dermatol. 1974;109(6):910. doi:10.1001/archderm.1974.01630060078026
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