MRCP2-2929

A 29-year-old man who has recently immigrated from Nigeria presents with a penile ulcer. He reports that it initially started as a small lump but then later progressed to a painful ulcer.

Upon examination, there is a 7mm diameter tender single ulcer with an undermined ragged edge just proximal to the glans of the penis. The testes and anal region appear normal. However, there is tender inguinal lymphadenopathy.

What is the probable diagnosis?