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September 1991

Linear Focal Elastosis: An Ultrastructural Study

Author Affiliations

From the Department of Dermatology, Faculty of Medicine, Tottori University, Yonago, Japan.

Arch Dermatol. 1991;127(9):1365-1368. doi:10.1001/archderm.1991.01680080101010

• We studied an 86-year-old Japanese man with linear focal elastosis. The lesions were asymptomatic yellow striae in the lumbar region, histologically composed of massive, well-demarcated basophilic fibers that stained positively with elastic tissue stains. Electron microscopy revealed fine, reticular or granular electron-dense materials, and elastic fiber microfibril-like materials in the matrix, in addition to numerous mature and immature elastic fibers. These findings suggest that active elastogenesis was occurring in the lesions. The four cases reported so far have the three common features of age, sex, and lesion location.

(Arch Dermatol. 1991;127:1365-1368)

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