Eccrine Duct Dilation as a Marker of Cicatricial Alopecia

A 55-year-old man presented with an ulceroproliferative growth on his right lower lip, initially suspected to be squamous cell carcinoma. However, a biopsy revealed epithelial hyperplasia, and further histopathological examination showed epithelioid cell granulomas with Langhans type multinucleated histiocytes and central caseous necrosis, leading to a diagnosis of tuberculosis of the lip. The patient did not undergo culture but was treated with anti-tuberculosis medication for 6 months and fully recovered. This case is notable because oral tuberculosis is rare, accounting for only 0.2%-1.5% of extrapulmonary cases, and it typically presents as a chronic nonhealing ulcer rather than an ulceroproliferative growth, making this case an uncommon presentation in medical literature.