Faculty profile
Marc Tewfik
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Read how they describe their research on their McGill University profile.
Latest papers
Systemic Corticosteroids in the Management of Sinonasal Disease: An Evidence‐Based Expert Review
International Forum of Allergy and Rhinology · 2026
A Novel International Endoscopic Sphenoid Surgery Classification (IESSC): A Delphi Consensus.
International forum of allergy & rhinology · 2025
An unexpected case of frontal headache: Silent corticotroph pituitary neuroendocrine tumor presenting as a sphenoid sinus mass.
SAGE open medical case reports · 2025
Latest funding
- $240,818
Endoscopic Polypectomy performed In Clinic for chronic rhinosinusitis with polyps: The EPIC multicenter randomised controlled trial
CIHR · 2016 · Co-investigator
11 publications.
Systemic Corticosteroids in the Management of Sinonasal Disease: An Evidence‐Based Expert Review
Thamboo A, Gigliotti D, De Corso E, Lee S, Bleier BS, Chin CJ, Corriveau M, Hox V, Hopkins C, Hwang PH
A Novel International Endoscopic Sphenoid Surgery Classification (IESSC): A Delphi Consensus.
Albaharna H, Alrasheed A, AlQahtani A, Psaltis AJ, Javer A, Meco C, Georgalas C, Wang EW, Alobid I, Omura K, Macias-Valle LF, Tewfik M, Prepageran N, Battaglia P, Castelnuovo P, Carrau R, Douglas R, Harvey R, Casiano RR, Ahmed S, Alsaleh S
An unexpected case of frontal headache: Silent corticotroph pituitary neuroendocrine tumor presenting as a sphenoid sinus mass.
McNicoll MM, Himdi L, Tewfik M, Di Maio S, Guiot MC, Larouche V
Most Common Pathogens Causing Rhinosinusitis in Patients Who Underwent Endoscopic Sinus Surgery Before, During, and After the COVID-19 Pandemic.
Almhanedi H, Aldajani A, Steinberg E, Tewfik M
Complete Clival Resorption and Pontine Pneumatosis Secondary to Severe Cocaine-Induced Midline Destructive Lesion: A Case Report.
Almansouri A, Tham A, Abobotain A, Almarwani M, Tewfik M, Sirhan D
Canadian multidisciplinary expert consensus on the use of biologics in upper airways: a Delphi study
Thamboo AV, Lee M, Bhutani M, Chan C, Chan Y, Chapman KR, Chin CJ, Connors L, Dorscheid D, Ellis AK
Endoscopic polypectomy performed in clinic for chronic rhinosinusitis with nasal polyps: study protocol for the EPIC multicentre randomised controlled trial.
Kilty S, Thavorn K, Janjua A, Lee J, MacDonald K, Meen E, Micomonaco D, Rotenberg B, Sowerby LJ, Tewfik M, Adams S, Frenette H, Lasso A, Fergusson DA
A challenge‐response endoscopic sinus surgery specific checklist as an add‐on to standard surgical checklist: an evaluation of potential safety and quality improvement issues
Sommer DD, Arbab‐Tafti S, Farrokhyar F, Tewfik M, Vescan A, Witterick IJ, Rotenberg B, Chandra R, Weitzel EK, Wright E
In-office sinonasal procedures in the elderly.
Kost K, Parham K, Tewfik M, AlSuliman YA
Differences in RANTES and IL-6 levels among chronic rhinosinusitis patients with predominant gram-negative and gram-positive infection.
Rammal A, Tewfik M, Rousseau S
Endoscopic Polypectomy performed In Clinic for chronic rhinosinusitis with polyps: The EPIC multicenter randomised controlled trial
Principal investigators: Kilty, Shaun; Fergusson, Dean A
Keywords: Chronic Rhinosinusitis With Nasal Polyps; Cost-Effectiveness Analysis; Disease Related Quality Of Life; Health Utility; Randomized Controlled Trial; Sinusitis; Surgery
From public funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998 with their latest competition results, the Canada Foundation for Innovation, Genome Canada, the Canadian Space Agency, Canada Research Chairs, the Fonds de recherche du Québec, Ontario research funding, Michael Smith Health Research BC, the Canadian Cancer Society, Heart & Stroke and Brain Canada.
Frequent collaborators
- Dean Fergusson and Kednapa Thavorn: 53 shared papers
- Leigh Sowerby and Brian Rotenberg: 41 shared papers
- Ian Witterick and Eric Monteiro: 33 shared papers
- Doron Sommer and Leigh Sowerby: 21 shared papers
- Harold Kim and Anne Ellis: 20 shared papers
- Helen Neighbour and Anne Ellis: 15 shared papers
- Doron Sommer and Brian Rotenberg: 14 shared papers
- Paul Keith and Harold Kim: 14 shared papers
- Paul Keith and Anne Ellis: 13 shared papers
- Doron Sommer and Ian Witterick: 12 shared papers
- Ian Witterick and Yvonne Chan: 12 shared papers
- Yvonne Chan and Eric Monteiro: 12 shared papers
- Eric Monteiro and Allan Vescan: 12 shared papers
- Paul Keith and Helen Neighbour: 10 shared papers
- Leigh Sowerby and Ian Witterick: 10 shared papers
- Ian Witterick and Allan Vescan: 10 shared papers
- Doron Sommer and Shaun Kilty: 9 shared papers
- Kednapa Thavorn and Shaun Kilty: 9 shared papers
- Shaun Kilty and Leigh Sowerby: 9 shared papers
- Ian Witterick and Martin Desrosiers: 8 shared papers
- Brian Rotenberg and Yvonne Chan: 8 shared papers
- Doron Sommer and Martin Desrosiers: 7 shared papers
- Paul Keith and Jaclyn Quirt: 7 shared papers
- Jaclyn Quirt and Anne Ellis: 7 shared papers
- Shaun Kilty and Martin Desrosiers: 7 shared papers
- Amin Javer and Ian Witterick: 7 shared papers
- Doron Sommer and Erin Wright: 5 shared papers
- Paul Keith and Amin Javer: 5 shared papers
- Jaclyn Quirt and Harold Kim: 5 shared papers
- Doron Sommer and Helen Neighbour: 4 shared papers
- Doron Sommer and Jayant Ramakrishna: 4 shared papers
- Doron Sommer and Amin Javer: 4 shared papers
- Dean Fergusson and Shaun Kilty: 4 shared papers
- Shaun Kilty and Erin Wright: 4 shared papers
- Ian Witterick and Erin Wright: 4 shared papers
- Ian Witterick and John Lee: 4 shared papers
- Doron Sommer and Marc Tewfik: 3 shared papers
- Doron Sommer and John Lee: 3 shared papers
- Doron Sommer and Allan Vescan: 3 shared papers
- Leigh Sowerby and Marc Tewfik: 3 shared papers
- Brian Rotenberg and Marc Tewfik: 3 shared papers
- John Lee and Allan Vescan: 3 shared papers
- Shaun Kilty and Marc Tewfik: 2 shared papers
- Amin Javer and Marc Tewfik: 2 shared papers
- Ian Witterick and Marc Tewfik: 2 shared papers
- Marc Tewfik and Yvonne Chan: 2 shared papers
- Jonathan Yip and Eric Monteiro: 2 shared papers
- Doron Sommer and Mohit Bhutani: 1 shared paper
- Doron Sommer and Jonathan Yip: 1 shared paper
- Doron Sommer and Melissa Lee: 1 shared paper
- Doron Sommer and Daniel Lee: 1 shared paper
- Paul Keith and Marc Tewfik: 1 shared paper
- Paul Keith and Mohit Bhutani: 1 shared paper
- Paul Keith and Melissa Lee: 1 shared paper
- Helen Neighbour and Marc Tewfik: 1 shared paper
- Helen Neighbour and Mohit Bhutani: 1 shared paper
- Helen Neighbour and Melissa Lee: 1 shared paper
- Jayant Ramakrishna and Ian Witterick: 1 shared paper
- Jayant Ramakrishna and Brian Rotenberg: 1 shared paper
- Jayant Ramakrishna and Marc Tewfik: 1 shared paper
- Jaclyn Quirt and Marc Tewfik: 1 shared paper
- Harold Kim and Marc Tewfik: 1 shared paper
- Dean Fergusson and Leigh Sowerby: 1 shared paper
- Dean Fergusson and Marc Tewfik: 1 shared paper
- Anne Ellis and Marc Tewfik: 1 shared paper
- Kednapa Thavorn and Leigh Sowerby: 1 shared paper
- Kednapa Thavorn and Marc Tewfik: 1 shared paper
- Leigh Sowerby and Jonathan Yip: 1 shared paper
- Leigh Sowerby and Daniel Lee: 1 shared paper
- Marc Tewfik and Mohit Bhutani: 1 shared paper
- Marc Tewfik and Erin Wright: 1 shared paper
- Marc Tewfik and Jonathan Yip: 1 shared paper
- Marc Tewfik and Melissa Lee: 1 shared paper
- Marc Tewfik and Daniel Lee: 1 shared paper
- Marc Tewfik and John Lee: 1 shared paper
- Marc Tewfik and Eric Monteiro: 1 shared paper
- Marc Tewfik and Allan Vescan: 1 shared paper
- Marc Tewfik and Martin Desrosiers: 1 shared paper
- Department of Otolaryngology-Head & Neck Surgery
- Department of Medicine
- Otolaryngology - Head and Neck Surgery
- Department of Surgery
- Department of Otolaryngology - Head and Neck Surgery
- School of Population and Public Health
- Surgery Dept
- Other
Co-authors at McGill University, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.
Doron Sommer
Department of Surgery
3 shared papers, latest 2026
Leigh Sowerby
Otolaryngology - Head and Neck Surgery
3 shared papers, latest 2026
Brian Rotenberg
Otolaryngology - Head and Neck Surgery
3 shared papers, latest 2023
Yvonne Chan
Department of Otolaryngology-Head & Neck Surgery
2 shared papers, latest 2026
Shaun Kilty
Otolaryngology - Head and Neck Surgery
2 shared papers, latest 2023
Amin Javer
School of Population and Public Health
2 shared papers, latest 2025
Ian Witterick
Department of Otolaryngology-Head & Neck Surgery
2 shared papers, latest 2023
Erin Wright
Surgery Dept
1 shared papers, latest 2018
Jonathan Yip
Cumming School of Medicine
1 shared papers, latest 2026
Melissa Lee
UBC Statistics
1 shared papers, latest 2023
Daniel Lee
Department of Otolaryngology-Head & Neck Surgery
1 shared papers, latest 2026
John Lee
Department of Otolaryngology-Head & Neck Surgery
1 shared papers, latest 2026
Eric Monteiro
Department of Otolaryngology-Head & Neck Surgery
1 shared papers, latest 2023
Allan Vescan
Department of Otolaryngology-Head & Neck Surgery
1 shared papers, latest 2018
Mohit Bhutani
Medicine Dept
1 shared papers, latest 2023
Martin Desrosiers
Département de chirurgie
1 shared papers, latest 2023
Harold Kim
Department of Medicine
1 shared papers, latest 2023
Simon Rousseau
Faculty
1 shared papers, latest 2017
Forough Farrokhyar
Department of Health Research Methods, Evidence, and Impact
1 shared papers, latest 2018
Anne Ellis
Department of Medicine
1 shared papers, latest 2023
Kednapa Thavorn
School of Epidemiology and Public Health
1 shared papers, latest 2020
Richard Leigh
Medicine
1 shared papers, latest 2023
Dean Fergusson
Department of Medicine
1 shared papers, latest 2020
Susan Waserman
Department of Medicine
1 shared papers, latest 2023
Paul Keith
Department of Medicine
1 shared papers, latest 2023
Helen Neighbour
Department of Medicine
1 shared papers, latest 2023
Jayant Ramakrishna
Department of Surgery
1 shared papers, latest 2018
Jaclyn Quirt
Department of Medicine
1 shared papers, latest 2023
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Profile data last refreshed on September 29, 2026 from the university directory, publication records and public research funding records.