Actinomyces Acute Rhinosinusitis Complicated by Subperiosteal Abscess in an Immunocompromised 12-Year-Old: Case Report and Literature Review.

Objective: To describe a rare case of pediatric actinomycotic rhinosinusitis with orbital subperiosteal abscess and review the current literature to assess methods of diagnosis, treatment modalities, and outcomes with appropriate treatment.

Methods: A case report and a review of the literature.

Results: A 12-year-old patient with Crohn's disease on infliximab presented with rhinosinusitis with orbital subperiosteal abscess formation.