PMC9880386_01
Multiple flesh-colored non-follicular, 1-4 mm in diameter papules on the posterolateral side of the neck.
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Dermatologic examination showed multiple, 1-4 mm in diameter, flesh-colored, non-follicular, non-confluent and firm papules distributed over the posterolateral sides of the neck (Figure 1).
(A) Histopathologic examination showed hyperplasia of collagen fiber in the dermis (HEX 100). (B) Orcein staining showed a significant reduction and fragmentation of elastic tissue in the reticular dermis (HEX 200).
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Histopathologic analysis showed a normal epidermis and mild thickened collagen bundles in the dermis (Figure 2A). Orcein stains showed a significant loss and fragmentation of elastic fibers in the reticular dermis (Figure 2B).