Perforating Folliculitis: A Transepidermal Elimination Disorder
January 2026
in “
JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH
”
Studysummary In this case study, a 62-year-old male with a history of uncontrolled diabetes and chronic kidney disease was diagnosed with perforating folliculitis after presenting with dark, raised, pruritic lesions on his limbs, confirmed by histopathological examination showing collagen extruding into hair follicles.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
A 62-year-old male with a history of uncontrolled diabetes and chronic kidney disease presented with dark, raised, itchy lesions on his limbs, diagnosed as perforating folliculitis. Histopathological examination showed dilated hair follicles with basophilic debris and transepithelial extrusion of collagen, confirming the diagnosis. Treatment included managing creatinine levels, glycaemic control, and a 7-day course of Doxycycline, Bilastine, and a keratolytic-based emollient. The patient's follow-up was not possible, so further clinical progression was not assessed.
