Management of Gastric Mucormycosis with CNS Vasculitic Changes and Aphasia

Immediate Emergency Actions

The patient requires immediate emergency intervention with combined surgical debridement of accessible disease sites and high-dose liposomal amphotericin B at 5-10 mg/kg/day, as CNS dissemination carries mortality rates exceeding 80% and represents a medical emergency demanding rapid, aggressive action 1, 2.
Mucormycosis with CNS involvement is a life-threatening emergency requiring action within hours, not days, and mortality doubles when antifungal treatment is delayed beyond 6 days from symptom onset 3, 4.

The Infectious Diseases Society of America recommends initiating liposomal amphotericin B immediately at 5-10 mg/kg/day from day 1 without dose escalation or test dosing, as this is the strongly recommended first-line agent 1, 2.
Alternative first-line options if liposomal amphotericin B is unavailable include isavuconazole IV or posaconazole IV 1, 2.

Surgical debridement with clean margins is strongly recommended and must be combined with medical treatment whenever anatomically feasible, serving three critical purposes: disease control, obtaining tissue for histopathology, and microbiological diagnostics 1, 2, 3, 4.
Surgical debridement reduces mortality from 62% to 11% in pulmonary disease; similar principles apply to gastric involvement 3, 4.

MRI brain with contrast is superior to CT for evaluating orbital and cerebral involvement, particularly for detecting cavernous sinus thrombosis or intracranial extension 6.
Obtain tissue biopsies from gastric lesions immediately for histopathology showing non-pigmented hyphae with tissue invasion and for culture isolation of Mucorales species 5.

Reversal of predisposing conditions is critical for survival and must occur simultaneously with antifungal therapy, including optimizing diabetes control aggressively, discontinuing or tapering corticosteroids, reducing immunosuppression, reversing neutropenia, and immediately discontinuing deferroxamine 1, 2, 6.

Posaconazole 400 mg twice daily is the strongly recommended salvage agent with 60-80% complete/partial response rates and 72% survival in registry data 7.

Disseminated disease to the CNS carries mortality rates exceeding 80% even with optimal therapy, and common pitfalls to avoid include delaying treatment initiation, using amphotericin B deoxycholate instead of lipid formulations, inadequate surgical debridement, slow dose escalation of amphotericin B, and failing to aggressively reverse underlying risk factors 3, 4, 5, 6.