Anatomic variants of the paranasal sinuses in patients with recurrent acute rhinosinusitis.

Background: The incidence and potential disease impact of paranasal sinus anatomic variants in patients with recurrent acute rhinosinusitis (RARS) has important implications for management, including surgery, but is incompletely defined.

Methods: A retrospective review of 26 patients with RARS who had undergone computed tomography (CT) was performed. Patient demographics, RARS severity and comorbidities were reviewed.

Epithelioid Hemangioendothelioma of the Maxillary Sinus.

The clinical course and pathologic features of a 72 year old female who presented with epistaxis are presented. Radiographic findings were notable for a large, soft tissue lesion filling the maxillary sinus with significant bony erosion and expansion. The patient was ultimately diagnosed with epithelioid hemangioendothelioma (EHE) and underwent endoscopic resection.