Granular Parakeratosis of the Eccrine Ostium: A Case Report

July 2023 in “ Clinical Cosmetic and Investigational Dermatology ”

Sittha Sriprachya-anunt, Suthinee Rutnin, Poonkiat Suchonwanit

TLDR Accurate diagnosis of granular parakeratosis is crucial for effective treatment and improvement.

This case report highlights a rare dermatological condition, granular parakeratosis (GP) of the eccrine ostium, in a 64-year-old Thai woman who was misdiagnosed for nearly 40 years. GP presents as brownish to erythematous papules, often mistaken for eczema or folliculitis due to its benign nature. The patient's condition improved with advice to avoid excessive heat and keep affected areas dry. Accurate diagnosis through histopathological examination is essential to prevent prolonged mismanagement of GP.

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