Acute sinusitis is a common inflammatory reaction disease of the nasal cavity and sinus mucosa,which can extend to ad-jacent tissues or organs,such as the orbit and intracranial regions.Children often experience sinusitis,which is affected by anatomi-cal and functional dysplasia of the sinuses and is prone to complications.The main complication is orbital cellulitis;however,addi-tional intracranial complications can occur if treatment is not administered in a timely manner.When conservative treatment is inef-fective,surgical treatment should be pursued.The present study retrospectively analyzed clinical data from a patient with orbital cel-lulitis complicated by intracranial infection caused by acute sinusitis,followed by a review of the relevant literature aimed at deepe-ning understanding of this disease.
SinusitisChildIntracranial complicationIntraorbital complicationFunctional endoscopic sinus surgery