Post COVID-19 Rhinocerebral Mucormycosis Complicated by Frontal Sinus Osteomyelitis (Pott’s Puffy Tumor) Reconstructed with Haddad’s Flap: A Technical Note

Rhinocerebral mucormycosis in an elderly post renal transplant diagnostic and management challenge and often with poor outcome owing to an immunocompromised state.The scenario is further complicated in post-COVID-19 status.We report a case of a 73-year-old with a background of diabetes and renal transplant who had acute COVID-19 infection and subsequently developed rhinocerebral mucormycosis with frontal osteomyelitis.The diagnosis was established by clinical and radiological evaluations, which further confirmed by mycological and histopathological examinations.She was successfully treated with radical resection of the lesion by combined endoscopic and external bi-coronal frontal craniotomy and the resultant defect is reconstructed with nasoseptal "Haddad's flap with monitored systemic antifungal therapy.A follow-up until 3 years showed no recurrence.