Updates are available Correction dated 2019-07-11

Article History

Received: 11 March 2019

Accepted: 21 May 2019

First Online: 29 May 2019

Change Date: 11 July 2019

Change Type: Correction

Change Details: Following publication of the original article [1], the authors reported an error in Table 1. In the second columns of the ‘Radiology’ row, ‘Normal anterolateral sinus mucosa’ should read ‘Normal superolateral sinus mucosa’. A corrected version of Table 1 is included in this Correction.

Ethics approval and consent to participate

: SVH File number 09/083, This study has the approval of the local St Vincent’s Hospital Human Research Ethics Committee (SVH HREC 09/083), and patients provided informed consent for research data collection.

: Each patient was consented for use of their images or pathology information for the purpose of education and research.

: RH is a consultant with Medtronic, Olympus and NeilMed pharmaceuticals. He has received research grant funding from Meda Pharmaceuticals and Stallergenes. He has been on the speakers’ bureau for BHR, Seqiris, Astra Zeneca, and Glaxo-Smith-Kline and Arthrocare. The remaining authors have no disclosures.