Recurrent Periorbital Cellulitis Secondary to Cyclic Neutropenia.

Purpose: To present a 1-year-old boy with cyclic neutropenia who presented with multiple episodes of periorbital cellulitis (POC).

Methods: The child presented with three episodes of POC. In the second episode, the cellulitis was associated with nasolacrimal duct obstruction, and in the third episode, a pansinusitis was noted.

Eosinophilic Mucin Rhinosinusitis in Iranian Patients Undergoing Endoscopic Sinus Surgery.

Introduction: Eosinophilic mucin rhinosinusitis is a type of chronic rhinosinusitis (CRS). Diagnosis and treatment of this condition play a significant role in reducing the patients' clinical symptoms. This type of rhinosinusitis has a higher relapse rate, compared to the other types.