Publication: Follicular Granular Parakeratosis: A Case Report, Literature Review, and Proposed Classification
Issued Date
2021-02-01
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ISSN
22969160
22969195
22969195
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2-s2.0-85100299501
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Mahidol University
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SCOPUS
Bibliographic Citation
Skin Appendage Disorders. Vol.7, No.2 (2021), 144-148
Suggested Citation
Phatcharawat Chirasuthat, Suthep Chirasuthat, Poonkiat Suchonwanit Follicular Granular Parakeratosis: A Case Report, Literature Review, and Proposed Classification. Skin Appendage Disorders. Vol.7, No.2 (2021), 144-148. doi:10.1159/000512950 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/78474
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Title
Follicular Granular Parakeratosis: A Case Report, Literature Review, and Proposed Classification
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Abstract
Granular parakeratosis (GP) is a distinctive acquired keratotic dermatosis that is usually presented with brownish-red hyperkeratotic papules and plaques in the intertriginous areas. Follicular involvement in GP could be either extending lesions from interfollicular epithelium or originating primarily from the follicular epithelium. The latter was named follicular GP and is considered an extremely rare condition. To our knowledge, there has been one reported case so far in the literature. We herein report the second case of follicular GP in a 52-year-old Thai man presenting with multiple tiny filiform hyperkeratotic papules on his face 2 weeks after using anti-melasma cream. We also propose a classification of GP based on its distinct clinical manifestations and histopathological findings.