REPORT OF A CASE
A 52-year-old white man presented with a 2-cm, slightly hypopigmented, firm annular lesion with a slightly elevated border (Figure 1 and Figure 2). The lesion had been present on the right cheek for more than 20 years and had gradually enlarged. In addition, an 8-mm tan-pink nodule that had grown over 6 months was present on the dorsum of the right second toe. Two punch biopsy specimens of the lesion on the cheek were taken to assure a representative sample. A specimen was also taken from the nodule on the toe.A biopsy specimen of the facial lesion is shown (Figure 3 and Figure 4).What is your diagnosis?
HISTOPATHOLOGIC FINDINGS AND CLINICAL COURSE
The two biopsy specimens of the cheek showed identical features. Cords of basaloid cells and scattered small keratinous cysts were embedded
West AJ, Hunt SJ, Goltz RW. Solitary Facial Plaque of Long Duration. Arch Dermatol. 1995;131(2):216. doi:10.1001/archderm.1995.01690140101019