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Article
December 1975

Apparently Normal Skin in Lepromatous LeprosyHistopathological Findings

Author Affiliations

From the Department of Medicine, Section of Dermatology (Drs Rea, Gottlieb, and Levan), and the Department of Pathology (Dr Gottlieb), University of Southern California School of Medicine, Los Angeles, and the Los Angeles County-University of Southern California Medical Center (Drs Rea, Gottlieb, and Levan).

Arch Dermatol. 1975;111(12):1571-1574. doi:10.1001/archderm.1975.01630240027004
Abstract

• Biopsy specimens of apparently uninvolved skin from 34 patients with lepromatous leprosy were studied histologically. Bacilli were found in 30 of 31 specimens from clinically polar or nearpolar lepromatous patients but not in the three from nonpolar patients. A predominantly perivascular distribution of infiltrate and bacilli is consistent with a hematogenous spread of infection. Subclinical, diffuse lepromatous leprosy is found in patients with nodular lesions and may precede the development of nodules. Study of apparently uninvolved skin may be helpful in classifying patients, in interpreting immunologic responses, and in elucidating the natural history of the illness.

(Arch Dermatol 111:1571-1574, 1975)

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