Skin Colored Papule on the Left Cheek
A 77-year-old man presented to the dermatology clinic for a routine skin cancer screening.
History. The patient had been followed by the dermatology clinic for the past 3 years after a history of non-melanoma skin cancers (NMSC). The patient reported a growing lesion over his left cheek in recent months. He denied any symptoms associated with this lesion. Upon examination, the patient had a 7 mm verrucous, flesh-colored papule on the left cheek. Further examination of the lesion with a dermoscopy revealed yellow, milia-like cysts and arborizing vessels (Figure 1A-B).
Figure 1. (A) A flesh-colored papule noted on the left cheek can be seen. (B) Dermoscopy evaluation with yellow granules and arborizing vessels is shown.
Diagnostic testing. A shave biopsy procedure was done for histologic examination, and a hematoxylin and eosin (H&E) stain was performed on the biopsied lesion (Figure 2A-B). The patient’s BerEP4 immunohistochemical stain was negative. PMS-2, MLH-1, MSH-2, and MSH-6 immunohistochemical stains showed retention of staining within nuclei.