Review Question - QID 214999

A 60-year-old man presents with difficulty walking for the last year. He has experienced progressive difficulty gauging where to place his feet when he walks, and notes that the apartment tenant below his unit has complained regarding excessively loud footsteps. The patient has not been to the doctor since he was a young man. He is not currently taking any medications. His temperature is 98.5°F (36.9°C), blood pressure is 136/85 mmHg, pulse is 75/min, and respirations are 19/min. Physical exam is notable for pupils that constrict to accommodation but not to light, decreased light touch sensation and proprioception in the bilateral lower extremities, and a broad-based gait. Which of the following skin lesions might you also expect to find in this patient?