This elderly man had been having trouble with sores at angles at both corners of his mouth from some time. The area seemed to be constantly moist with painful cracks that bleed from time to time; of late, they had been much more troublesome. Apart from recently diagnosed late-onset diabetes, he was otherwise well, maintained a healthy lifestyle and led an active life.

What could be the most probable diagnosis for this condition? * This image based case is from Docplexus editorial team for educative purpose only. Source: Haymarket