A 58-year-old woman presented with multiple nodular lesions on her leg since a few months before. On physical examination there were several nodular lesions ranging from 1.5 to 2.5 cm in diameter on the anterior and lateral aspect of leg. Some of the lesions were ulcerated and regional lymph nodes were palpable...

What's your diagnosis ?

Sporotrichosis 

Sporotrichosis is a fungal infection caused by Sporothrix schenckii. It has both cutaneous and systemic forms. Cutaneous forms may be lymphangitic, fixed, or disseminated.

The lymphangitic type is the most common form, which follows the implantation of spores in a wound and therefore usually occurs on exposed skin. Clinically it starts in the form of a painless papule and subsequently a chain of nodular lesions appears along the lymphatic vessels draining the area.