Medical School
University of Athens School of Health Sciences, Greece (2010)
Research Fellowship
Johns Hopkins University (2012), Surgical Oncology
Research Fellowship
Cleveland Clinic Foundation (2016), Cancer Biology
Cleveland Clinic Foundation (2019), General Surgery
Chief Resident
Cleveland Clinic Foundation (2019), General Surgery
Memorial Sloan-Kettering Cancer Center (2021), Surgical Oncology


Featured Publications LegendFeatured Publications

Small bowel adenocarcinoma in Crohn's disease: a rare but devastating complication.
Hussain T, Jeganathan NA, Karagkounis G, Stocchi L, Shawki S, Holubar SD, Gordon I, Hull T, Liska D, Tech Coloproctol 2020 10 24 10 1055-1062
Conditional Survival in Patients With Rectal Cancer and Complete Clinical Response Managed by Watch and Wait After Chemoradiation: Recurrence Risk Over Time.
São Julião GP, Karagkounis G, Fernandez LM, Habr-Gama A, Vailati BB, Dattani M, Kalady MF, Perez RO, Ann Surg 2020 07 272 1 138-144
Comprehensive Complication Index Validates Improved Outcomes Over Time Despite Increased Complexity in 3707 Consecutive Hepatectomies.
Cloyd JM, Mizuno T, Kawaguchi Y, Lillemoe HA, Karagkounis G, Omichi K, Chun YS, Conrad C, Tzeng CD, Odisio BC, Huang SY, Hicks M, Wei SH, Aloia TA, Vauthey JN, Ann Surg 2020 04 271 4 724-731
CoA Synthase (COASY) Mediates Radiation Resistance via PI3K Signaling in Rectal Cancer.
Ferrandon S, DeVecchio J, Duraes L, Chouhan H, Karagkounis G, Davenport J, Orloff M, Liska D, Kalady MF, Cancer Res 2020 01 80 2 334-346
Prognostic Implications of Pathological Response to Neoadjuvant Chemoradiation in Pathologic Stage III Rectal Cancer.
Karagkounis G, Thai L, Mace AG, Wiland H, Pai RK, Steele SR, Church JM, Kalady MF, Ann Surg 2019 06 269 6 1117-1123
Conditional Probability of Survival After Neoadjuvant Chemoradiation and Proctectomy for Rectal Cancer: What Matters and When.
Karagkounis G, Liska D, Kalady MF, Dis Colon Rectum 2019 01 62 1 33-39
Surgical Resection for Recurrence After Two-Stage Hepatectomy for Colorectal Liver Metastases Is Feasible, Is Safe, and Improves Survival.
Lillemoe HA, Kawaguchi Y, Passot G, Karagkounis G, Simoneau E, You YN, Mehran RJ, Chun YS, Tzeng CD, Aloia TA, Vauthey JN, J Gastrointest Surg 2019 01 23 1 84-92
Mucinous Histology Signifies Poor Oncologic Outcome in Young Patients With Colorectal Cancer.
Soliman BG, Karagkounis G, Church JM, Plesec T, Kalady MF, Dis Colon Rectum 2018 May 61 5 547-553
Multidisciplinary Conference and Clinical Management of Rectal Cancer.
Karagkounis G, Stocchi L, Lavery IC, Liska D, Gorgun E, Veniero J, Plesec T, Amarnath S, Khorana AA, Kalady MF, J Am Coll Surg 2018 05 226 5 874-880
Simvastatin enhances radiation sensitivity of colorectal cancer cells.
Karagkounis G, DeVecchio J, Ferrandon S, Kalady MF, Surg Endosc 2018 03 32 3 1533-1539