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Description This chapter describes the correlation of porokeratosis
Author(s) Oriol Yélamos · Ralph P. Braun
Responsible author Oriol Yélamos→ send e-mail
Status unknown
Status update May 22, 2019
Status by Ralph P. Braun




Peripheral annular rim (“white track”)

is a well-defined, thin white-yellow annular structure surrounding a brownish or whitish area. Histologically, it correlates with the presence of a cornoid lamella (figure) (A. Lallas et al., 2014).

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