Red-brown papules and plaques on the head and body

A man, aged 52 years, presents with a 6-month history of lesions on the scalp, face, trunk, and arms. The lesions have been unresponsive to treatment for tinea. The patient's medical history is noncontributory, but he does report a persistent cough and increased fatigue for the last several months. Physical examination reveals red-brown papules and plaques on the back, arms, ...