Cutaneous mucormycosis is a rapidly advancing fungal infection that most commonly occurs due to airborne spread or direct inoculation and requires early detection and prompt treatment for optimal survival. Major risk factors include diabetes, transplantations, malignancies, surgical procedures, and HIV. Diagnostic criteria are based on microscopy and culture. We present an immunocompromised patient with cutaneous mucormycosis that developed in a peristomal ulcer following a hemicolectomy procedure. Histopathologic evaluation was indicative of mucormycosis. Intravenous posaconazole treatment was initiated, but unfortunately, the patient's condition deteriorated and he passed away.
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