Summary
Pseudoepitheliomatous keratotic and micaceous balanitis (PKMB) is an uncommon premalignant condition involving the glans penis. We report the case of an 86-year-old man who presented with phimosis and pain on retracting his foreskin. He had previously undergone circumcision, which revealed a hyperkeratotic plaque with thin mica-like scales involving his glans penis. Histology of the lesion showed hyperkeratosis, parakeratosis, epidermal acanthosis and papillomatosis with no evidence of dysplasia. Immunohistochemistry for human papillomavirus was negative. The patient was treated with topical 5-fluorouracil and liquid nitrogen with clinical improvement. He is now under long-term surveillance for verrucous carcinoma and squamous cell carcinoma.
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