January 1990 in “The Nishinihon Journal of Dermatology” This study suggests that keratoacanthomas may be distinguished from squamous cell carcinoma by identifying hair follicle structures, based on keratin expression and histological features observed in tumor samples.
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January 1989 in “The Nishinihon Journal of Dermatology” This study found that seborrheic keratosis lesions contain high levels of hair sheath keratin, suggesting they may originate from the upper hair follicle.
September 2025 in “Annals of Plastic Surgery” In this case report, a 76-year-old male had an eyelid lesion that mimicked squamous cell carcinoma but was diagnosed as benign inverted follicular keratosis after surgical excision, underscoring the importance of distinguishing between the two for proper management.
2 citations
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September 2022 in “Frontiers in Immunology” This article reviews the emerging non-inflammatory roles of regulatory T cells in the skin and reports no new clinical findings, suggesting broad biological influence beyond traditional immune functions.
February 2026 in “Clinical Cosmetic and Investigational Dermatology” In this study, the authors emphasize that IFK, though rare in young patients, should be considered when diagnosing scalp lesions in all age groups, highlighting the importance of recognizing its dermoscopic and histopathologic features to avoid misdiagnosis and ensure proper management.