A 20-year-old man presents with a 4-year history of a skin condition on his face. He tried an over-the-counter salicylic acid facewash that did not help much. The lesions are sometimes painful and ...

The 2 skin disorders presented in this Dermatologic Look-Alikes can affect a patient’s trunk. One is caused by a fungus, the other not. Can you make the diagnosis?

Lupus vulgaris: This ongoing type of skin TB gets worse over time and occurs after reinfection by a different type of Mycobacterium to the first. It features small papules that merge into plaques ...

Other types of lupus, including systemic and drug-induced lupus, may also affect the skin, but they don’t always. Still, most people with any type of lupus will experience skin symptoms at some ...