Serum and Tissue Periostin Expression in Unilateral Benign Lesions of the Nose and the Paranasal Sinuses.

: Periostin's role in the pathogenesis of inflammatory diseases, particularly in the nose and paranasal sinuses, is an area of growing interest. This study aims to evaluate the expression of periostin in mucoceles, inverted papillomas, choanopolyps and retention cysts. : Tissue samples collected during functional endoscopic sinus surgery (FESS) were analyzed for POSTN gene mRNA expression using qPCR.

Impact of Atmospheric Conditions on Epistaxis Incidence.

Purpose: A possible correlation between epistaxis occurrence and atmospheric parameters' variation has long been hypothesized. This study aims to determine whether cumulative epistaxis incidence is related to seasonal variation and its relationship to monthly, weekly, and daily recordings of atmospheric measurements in the city of Patras, Greece.

Methods: In this retrospective study, data concerning the patients who presented with active epistaxis at the ED of a tertiary university hospital in Western Greece between January 2020 and December 2021 were collected.