Dr Mark Johnstone
- Clinical Lecturer in Surgery (Medicine)
- Honorary Clinical Lecturer (Undergraduate Medical School)
email:
Mark.Johnstone.2@glasgow.ac.uk
School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, G12 8QQ
Publications
2025
Mathews, C. et al. (2025) Retrospective cohort study: scope for improvement - barriers to post-polypectomy surveillance in the integrated technologies for improved polyp surveillance cohort. Alimentary Pharmacology and Therapeutics, (doi: 10.1111/apt.18514) (Early Online Publication)
2024
Johnstone, Mark S., McSorley, Steven T. ORCID: https://orcid.org/0000-0002-5459-8445, McMillan, Donald C.
ORCID: https://orcid.org/0000-0003-4260-5334, Horgan, Paul G.
ORCID: https://orcid.org/0000-0001-5557-7905 and Mansouri, David
ORCID: https://orcid.org/0000-0002-9157-6085
(2024)
The relationship between systemic inflammatory response, screen detection and outcome in colorectal cancer.
Colorectal Disease, 26(1),
pp. 81-94.
(doi: 10.1111/codi.16824)
(PMID:38095280)
2023
Johnstone, Mark S., McSorley, Stephen T. ORCID: https://orcid.org/0000-0002-5459-8445 and McMahon, Andrew J.
(2023)
Management of malignant T1 colorectal cancer polyps: results from a 10-year prospective observational study.
Colorectal Disease, 25(10),
pp. 1960-1972.
(doi: 10.1111/codi.16716)
(PMID:37612791)
Johnstone, Mark S., Stoops, Reiss, Lynch, Gerard, Hay, Jennifer, Jawny, Jakub, Sloan, William, Edwards, Joanne ORCID: https://orcid.org/0000-0002-7192-6906 and McSorley, Stephen T.
ORCID: https://orcid.org/0000-0002-5459-8445
(2023)
Risk stratification for the detection of metachronous polyps after bowel screening polypectomy: clinical outcomes from the Integrated Technologies for Improved Polyp Surveillance (INCISE) study cohort.
BJS Open, 7(3),
zrad034.
(doi: 10.1093/bjsopen/zrad034)
(PMID:37158435)
(PMCID:PMC10167706)
2022
Johnstone, Mark S., MacLeod, Campbell, Digby, Jayne, Al-Azzawi, Yassir, Pang, Grace, Watson, Angus J.M., Strachan, Judith, Mowat, Craig and McSorley, Stephen T. ORCID: https://orcid.org/0000-0002-5459-8445
(2022)
Prevalence of repeat faecal immunochemical testing in symptomatic patients attending primary care.
Colorectal Disease, 24(12),
pp. 1498-1504.
(doi: 10.1111/codi.16240)
(PMID:35776684)
Johnstone, M. S. et al. (2022) Alternative diagnoses and demographics associated with a raised quantitative faecal immunochemical test in symptomatic patients. Annals of Clinical Biochemistry, 59(4), pp. 277-287. (doi: 10.1177/00045632221076771) (PMID:35044264) (PMCID:PMC9280700)
Johnstone, Mark S., Burton, Paul, Kourounis, Georgios ORCID: https://orcid.org/0000-0002-1051-078X, Winter, Jack, Crighton, Emilia, Mansouri, David
ORCID: https://orcid.org/0000-0002-9157-6085, Witherspoon, Paul, Smith, Karen and McSorley, Stephen T.
ORCID: https://orcid.org/0000-0002-5459-8445
(2022)
Combining the quantitative faecal immunochemical test and full blood count reliably rules out colorectal cancer in a symptomatic patient referral pathway.
International Journal of Colorectal Disease, 37(2),
pp. 457-466.
(doi: 10.1007/s00384-021-04079-2)
(PMID:34932152)
(PMCID:PMC8803704)
2021
Johnstone, Mark S., McMillan, Donald C. ORCID: https://orcid.org/0000-0003-4260-5334, Horgan, Paul G.
ORCID: https://orcid.org/0000-0001-5557-7905 and Mansouri, David
ORCID: https://orcid.org/0000-0002-9157-6085
(2021)
The relationship between co-morbidity, screen-detection and outcome in patients undergoing resection for colorectal cancer.
World Journal of Surgery, 45(7),
pp. 2251-2260.
(doi: 10.1007/s00268-021-06079-3)
(PMID:33774690)
(PMCID:PMC8154830)
2019
McSorley, Stephen ORCID: https://orcid.org/0000-0002-5459-8445, Johnstone, Mark, Steele, Colin W.
ORCID: https://orcid.org/0000-0001-8518-1223, Roxburgh, Campbell S.D.
ORCID: https://orcid.org/0000-0002-2649-6695, Horgan, Paul G.
ORCID: https://orcid.org/0000-0001-5557-7905, McMillan, Donald C.
ORCID: https://orcid.org/0000-0003-4260-5334 and Mansouri, David
ORCID: https://orcid.org/0000-0002-9157-6085
(2019)
Normocytic anaemia is associated with systemic inflammation and poorer survival in patients with colorectal cancer treated with curative intent.
International Journal of Colorectal Disease, 34(3),
pp. 401-408.
(doi: 10.1007/s00384-018-3211-7)
(PMID:30515556)
2017
Johnstone, Mark Scott (2017) Vertical rectus abdominis myocutaneous versus alternative flaps for perineal repair after abdominoperineal excision of the rectum in the era of laparoscopic surgery. Annals of Plastic Surgery, 79(1), pp. 101-106. (doi: 10.1097/SAP.0000000000001137) (PMID:28542071)
Moug, S. et al. (2017) Analysis of lesion localisation at colonoscopy: outcomes from a multi-centre U.K. study. Surgical Endoscopy, 31(7), pp. 2959-2967. (doi: 10.1007/s00464-016-5313-z) (PMID:27826775)
2015
Bryce, Adam S., Johnstone, Mark S. and Moug, S.J. (2015) Improving lesion localisation at colonoscopy: an analysis of influencing factors. International Journal of Colorectal Disease, 30(1), pp. 111-118. (doi: 10.1007/s00384-014-2052-2)
Articles
Mathews, C. et al. (2025) Retrospective cohort study: scope for improvement - barriers to post-polypectomy surveillance in the integrated technologies for improved polyp surveillance cohort. Alimentary Pharmacology and Therapeutics, (doi: 10.1111/apt.18514) (Early Online Publication)
Johnstone, Mark S., McSorley, Steven T. ORCID: https://orcid.org/0000-0002-5459-8445, McMillan, Donald C.
ORCID: https://orcid.org/0000-0003-4260-5334, Horgan, Paul G.
ORCID: https://orcid.org/0000-0001-5557-7905 and Mansouri, David
ORCID: https://orcid.org/0000-0002-9157-6085
(2024)
The relationship between systemic inflammatory response, screen detection and outcome in colorectal cancer.
Colorectal Disease, 26(1),
pp. 81-94.
(doi: 10.1111/codi.16824)
(PMID:38095280)
Johnstone, Mark S., McSorley, Stephen T. ORCID: https://orcid.org/0000-0002-5459-8445 and McMahon, Andrew J.
(2023)
Management of malignant T1 colorectal cancer polyps: results from a 10-year prospective observational study.
Colorectal Disease, 25(10),
pp. 1960-1972.
(doi: 10.1111/codi.16716)
(PMID:37612791)
Johnstone, Mark S., Stoops, Reiss, Lynch, Gerard, Hay, Jennifer, Jawny, Jakub, Sloan, William, Edwards, Joanne ORCID: https://orcid.org/0000-0002-7192-6906 and McSorley, Stephen T.
ORCID: https://orcid.org/0000-0002-5459-8445
(2023)
Risk stratification for the detection of metachronous polyps after bowel screening polypectomy: clinical outcomes from the Integrated Technologies for Improved Polyp Surveillance (INCISE) study cohort.
BJS Open, 7(3),
zrad034.
(doi: 10.1093/bjsopen/zrad034)
(PMID:37158435)
(PMCID:PMC10167706)
Johnstone, Mark S., MacLeod, Campbell, Digby, Jayne, Al-Azzawi, Yassir, Pang, Grace, Watson, Angus J.M., Strachan, Judith, Mowat, Craig and McSorley, Stephen T. ORCID: https://orcid.org/0000-0002-5459-8445
(2022)
Prevalence of repeat faecal immunochemical testing in symptomatic patients attending primary care.
Colorectal Disease, 24(12),
pp. 1498-1504.
(doi: 10.1111/codi.16240)
(PMID:35776684)
Johnstone, M. S. et al. (2022) Alternative diagnoses and demographics associated with a raised quantitative faecal immunochemical test in symptomatic patients. Annals of Clinical Biochemistry, 59(4), pp. 277-287. (doi: 10.1177/00045632221076771) (PMID:35044264) (PMCID:PMC9280700)
Johnstone, Mark S., Burton, Paul, Kourounis, Georgios ORCID: https://orcid.org/0000-0002-1051-078X, Winter, Jack, Crighton, Emilia, Mansouri, David
ORCID: https://orcid.org/0000-0002-9157-6085, Witherspoon, Paul, Smith, Karen and McSorley, Stephen T.
ORCID: https://orcid.org/0000-0002-5459-8445
(2022)
Combining the quantitative faecal immunochemical test and full blood count reliably rules out colorectal cancer in a symptomatic patient referral pathway.
International Journal of Colorectal Disease, 37(2),
pp. 457-466.
(doi: 10.1007/s00384-021-04079-2)
(PMID:34932152)
(PMCID:PMC8803704)
Johnstone, Mark S., McMillan, Donald C. ORCID: https://orcid.org/0000-0003-4260-5334, Horgan, Paul G.
ORCID: https://orcid.org/0000-0001-5557-7905 and Mansouri, David
ORCID: https://orcid.org/0000-0002-9157-6085
(2021)
The relationship between co-morbidity, screen-detection and outcome in patients undergoing resection for colorectal cancer.
World Journal of Surgery, 45(7),
pp. 2251-2260.
(doi: 10.1007/s00268-021-06079-3)
(PMID:33774690)
(PMCID:PMC8154830)
McSorley, Stephen ORCID: https://orcid.org/0000-0002-5459-8445, Johnstone, Mark, Steele, Colin W.
ORCID: https://orcid.org/0000-0001-8518-1223, Roxburgh, Campbell S.D.
ORCID: https://orcid.org/0000-0002-2649-6695, Horgan, Paul G.
ORCID: https://orcid.org/0000-0001-5557-7905, McMillan, Donald C.
ORCID: https://orcid.org/0000-0003-4260-5334 and Mansouri, David
ORCID: https://orcid.org/0000-0002-9157-6085
(2019)
Normocytic anaemia is associated with systemic inflammation and poorer survival in patients with colorectal cancer treated with curative intent.
International Journal of Colorectal Disease, 34(3),
pp. 401-408.
(doi: 10.1007/s00384-018-3211-7)
(PMID:30515556)
Johnstone, Mark Scott (2017) Vertical rectus abdominis myocutaneous versus alternative flaps for perineal repair after abdominoperineal excision of the rectum in the era of laparoscopic surgery. Annals of Plastic Surgery, 79(1), pp. 101-106. (doi: 10.1097/SAP.0000000000001137) (PMID:28542071)
Moug, S. et al. (2017) Analysis of lesion localisation at colonoscopy: outcomes from a multi-centre U.K. study. Surgical Endoscopy, 31(7), pp. 2959-2967. (doi: 10.1007/s00464-016-5313-z) (PMID:27826775)
Bryce, Adam S., Johnstone, Mark S. and Moug, S.J. (2015) Improving lesion localisation at colonoscopy: an analysis of influencing factors. International Journal of Colorectal Disease, 30(1), pp. 111-118. (doi: 10.1007/s00384-014-2052-2)