Rare case of a chronic rhinocerebral mucormycosis

Abstract

We describe a case of rhino-orbital-cerebral mucormycosis (ROCM) in a diabetic patient. She presented with cavernous sinus syndrome and ischemia of the optic nerve. Initially unremarkable findings in the nasal cavity and paranasal sinus delayed early diagnosis. Within two weeks, a follow-up MRI showing progressive orbital inflammation, thrombosis of the cavernous sinus and erosive destruction of the left middle nasal concha together with necrotic black tissue in the left nasal cavity and destruction of the maxillary sinus demonstrated in a consecutively performed ethmoidectomy, finally gave way to diagnosis. Definite diagnosis was established by histopathology and culture. Treatment consisted of a combination of liposomal Amphotericin B, partial surgical resection and improved diabetes control. Despite insufficient surgical treatment, the progression of the disease was remarkably slow – a typical hallmark of chronic ROCM.With this case report we aim to underline the difficulties in establishing a prompt diagnosis of ROCM and to remind readers of its chronic form.2012 Elsevier Ltd. All rights reserved.

Keywords

• Chronic rhinocerebral mucormycosis
• Rhino-orbital-cerebral mucormycosis
• Cavernous sinus syndrome
• Rhizopus arrhizus
• Cranial nerve palsy parainfectious vasculitis