A 35-year-old man develops a solitary, reddish-brown plaque on his chest during medical treatment. Explore this common immune-mediated skin reaction.
This lesion developed on the chest of a 35-year-old man during treatment for a respiratory tract infection. What is the diagnosis?
What is the most likely diagnosis?
Adverse Drug Reaction, Cutaneous, Dermatology, Fixed drug eruption, Hyperpigmentation