A 30-year-old man comes to the physician because of a 2-month history of a progressive rash on his back. He describes it as mildly itchy. Vitals are normal. A VDRL is negative. A photograph of the rash is shown. Which of the following is the most likely diagnosis?
Lichen simplex chronicus
Pityriasis rosea
Psoriasis
Spirochete
Tinea corporis
Tinea versicolor
