Primary Cutaneous Mucormycosis Presenting as a Giant Plaque: Uncommon Presentation of a Rare Mycosis

Mucormycosis is an uncommon systemic mycosis affecting the immunocompromised individuals. It is usually caused by organisms of the genera Rhizopus and Mucor , although rarely other organisms have also been implicated. Mycoses due to these angioinvasive fungi have an acute onset, rapidly progressive course with high mortality rate. A rare and less well known is the chronic subtype of primary cutaneous mucormycosis (PCM). Herein, we report a case of PCM clinically presenting as a chronic, giant destructive plaque in a young immunocompetent male and coin the term chronic granulomatous mucormycosis. A clinicopathological classification for cutaneous mucormycosis is also proposed.