Skip Ribbon Commands
Skip to main content
Menu
Clin Assoc Prof Lester Leong Chee Hao

Clin Assoc Prof Lester Leong Chee Hao

MBBS (Singapore), MMed (Diagnostic Rad), FAMS

Senior Consultant

Singapore General Hospital

Specialty: Diagnostic Radiology

Sub-specialties: Breast Imaging

Conditions Treated by this Doctor:
3D Digital Breast Tomosynthesis, Breast Cancer, Breast Fibroadenoma, Breast Imaging, Breast Infection, Breast Lumps, Breast Needle Biopsies, Breast Vacuum-Assisted Biopsies, Contrast-Enhanced Mammography, Early Detection and Breast Screening, EOS Imaging, Magnetic Resonance Imaging (MRI) Brain, Magnetic Resonance Imaging (MRI) Scan, Magnetic Resonance Imaging (MRI) Scan, Mammography, Mammography, MRI-Guided Breast Biopsies, Nipple Discharge, Ultrasound Breast Elastography.

Clinical Appointments

  • Senior Consultant Diagnostic Radiology Singapore General HospitalSingapore General Hospital

Academic Appointments

  • Clinical Associate Professor SingHealth Duke-NUS Radiological Sciences Academic Clinical Programme

Profile

Dr Lester Leong is a Senior Consultant with the Department of Diagnostic Radiology at the Singapore General Hospital and a Clinical Associate Professor with the SingHealth Radiological Sciences Academic Clinical Programme, Duke-NUS Medical School.

He completed his specialty traineeship in Diagnostic Radiology in Singapore. His subspecialty interest is breast imaging and he underwent a fellowship in breast imaging under the auspices of the SingHealth's Human Resource Development Program Scholarship at the Brigham and Women’s Hospital, Boston, Massachusetts, United States of America in 2010. He did another fellowship in breast imaging at the St Bartholomew’s Hospital in London, UK. He has special research interests in breast cancer screening, breast MRI imaging, ultrasound breast elastography, and imaging evaluation of axillary nodes.

Dr Leong was previously Chairman of the Chapter of Diagnostic Radiologists, College of Radiologists, Singapore and is also Past Chair of the Breast Imaging Subsection of the Singapore Radiological Society. 

Education

  • ​Bachelor of Medicine, Bachelor of Surgery (MBBS), National  University of Singapore (1998)
  • Master of Medicine (Diagnostic Radiology) Singapore (2006)
  • Fellow of the Academy of Medicine of Singapore (FAMS) (2009)
  • Fellow, Lee Bell Center for Breast Imaging, Brigham and Women’s Hospital, Boston, USA (2010)
  • Fellow, Diagnostic Radiology, St Bartholomew’s Hospital, London, UK (2013)

Professional Appointments and Committee Memberships

  • Senior Consultant, Department of Diagnostic Radiology, Singapore General Hospital, Singapore
  • Clinical Associate Professor, Radiological Sciences Academic Clinical Program, SingHealth Services, Duke-NUS Graduate Medical School.
  • Committee Member, Past Chairperson, Chapter of Diagnostic Radiologists, College of Radiologists, Singapore
  • Committee Member, Past Chairperson, Breast Imaging Subsection, Singapore Radiological Society
  • Committee Member, Screening Test Review Committee, Academy of Medicine, Singapore

Awards

  • 1st Runner-up Oral Presentation (Education Stories Category), SingHealth Duke-NUS Education Conference 2022, Singapore (Sep 2022)
  • Poster Merit Awards, Singapore Congress of Radiology-WIRES 2022, Singapore (Aug 2022)
  • Best Poster Award, 9th Asia-Pacific Breast Cancer Summit, Singapore (Jan 2021)
  • Distinguished Poster Award, Asian Surgical Ultrasound Society Congress, Republic of Korea (Nov 2020)
  • Best Diagnostic Scientific Poster, Singapore Congress of Radiology in conjunction with 19th Congress of the ASEAN Association of Radiology, Singapore (August 2019)
  • Scientific E-poster Merit Awards, RadiologyAsia Conference 2018, Singapore (May 2018)
  • Singapore Health Quality Service Award 2018 - Silver Award (Jan 2018)
  • Best Educational Poster, RadiologyAsia Conference 2017, Singapore (May 2017)
  • Service with a Heart Award (Medical) (Jan 2016)
  • 1st prize, Best E-poster Award Oct at the 12th Asian Breast Diseases Association Conference in Bali, Indonesia (Oct 2014)
  • Best Poster Award at the 20th Annual Scientific Meeting of the Singapore Radiological Society and College of Radiologists in conjunction with the 15th ASEAN Association of Radiology Meeting, Singapore (May 2011)
  • Best Scientific Paper Award at the 13th Asian Oceanian Congress of Radiology in Taipei, Taiwan (Mar 2010)
  • Excellent Service Award (EXSA) - Silver Award (Sep 2009)
  • SingHealth Human Resource Development Program Scholarship (Apr 2009)
  • 2nd Prize for Scientific Oral Presentation at the Singapore General Hospital 18th Annual Scientific Meeting, Singapore (Apr 2009)
  • Merit Award for Scientific Exhibit at the 94th Radiological Society of North America Scientific Assembly and Annual Meeting in Chicago, USA (Dec 2008)
  • Silver Award for Poster presentation at the 14th ASEAN Association of Radiology Meeting Hanoi, Vietnam (Sep 2008)
  • Singapore General Hospital Service Quality Award (Nov 2008)
  • SARS Courage Award  (May 2003)

Research Interests

Publications

  • Savi Scout Wireless Localisation of the Breast and Axillary Lesions: Lessons Learned from Singapore's Early Experience. Leong LCH, Lim HJ (joint 1st authorship), Tan YY, Ong EMW, Tan VKM, Lim SZ, Woo EKY, Lee YS, Sim YR, Madhukumar P, Tan BKT, Sim LS, Moey THL, Win T, Lim GH. Singapore Med J. (Article in press, accepted for publication Aug 2022).
  • TB or not TB? The Axillary Lump Question. Chan CW, Poh BR, Wong CY, Kwah RYC, Leong LCH. Ann Acad Med Singap. 2022 Sep;51(9):589-590.
  • Determining the Benefit of Neoadjuvant Chemotherapy in Reduction of Axillary Dissection Rates in Z0011 Trial Cohort with High Nodal Burden. Yan Z, Wong A, Ng RP, Lee YS, Lim ME, Leong LC, Allen J, Lim GH. Gland Surg. 2022 May;11(5):788-794.
  • Responsive Web-based Breast Imaging Core Curriculum for International Radiology Residents with Self-Assessment: A Pilot Study. Omofoye TS, Leong LCH, Kalambo M, Teo SY, Lim WEH, Chew DCY, Lee SYS, Lane D, Kapoor MM, Martaindale S, Teichgraeber D, Moseley T, Phalak K, Srinivasan A, Sun J, Whitman G, Leung JWT, Tan BS, Yang WT. Acad Radiol. 2022 Jun;29(6):919-927.
  • Multi-Center Evaluation Of Artificial Intelligent Imaging And Clinical Models For Predicting Neoadjuvant Chemotherapy Response In Breast Cancer. Qi TH, Hian OH, Kumaran AM, Tan TJ, Cong TRY, Su-Xin GL, Lim EH, Ng R, Yeo MCR, Tching FLLW, Zewen Z, Hui CYS, Xin WR, Ooi SKG, Leong LCH, Tan SM, Preetha M, Sim Y, Tan VKM, Yeong J, Yong WF, Cai Y, Nei WL; JBCR; Ai3. Breast Cancer Res Treat. 2022 May;193(1):121-138 2022.
  • The Global Reading Room: Managing a Benign Papilloma. Freitas V, Goudreau S, Leong LCH, Sharma N. AJR Am J Roentgenol. 2022 Apr;218(4):758-759.
  • Overlap of high-risk individuals predicted by family history, and genetic and non-genetic breast cancer risk prediction models: implications for risk stratification.  Ho PJ, Ho WK, Khng AJ, Yeoh YS, Tan BK, Tan EY, Lim GH, Tan SM, Tan VKM, Yip CH, Mohd-Taib NA, Wong FY, Lim EH, Ngeow J, Chay WY, Leong LCH, Yong WS, Seah CM, Tang SW, Ng CWQ, Yan Z, Lee JA, Rahmat K, Islam T, Hassan T, Tai MC, Khor CC, Yuan JM, Koh WP, Sim X, Dunning AM, Bolla MK, Antoniou AC, Teo SH, Li J, Hartman M. BMC Med. 2022 Apr 26;20(1):150. 
  • Shear Wave versus Strain Elastography of Breast Lesions- the Value of Incorporating Boundary Tissue Assessment. Tay IWM, Sim LS, Moey THL, Tan KPP, Lai LMS, Leong LCH. Clin Imaging. 2022 Feb;82:228-233.
  • Breast-related Extranodal Rosai-Dorfman Disease Presenting as Subcutaneous Masses with Thick Hyperechoic Rim, with Review of the Literature. Choo PZQ, Loh AHL, Selvarajan S, Tan PH, Tan VKM, Yong WS, Leong LCH. Breast J. 2021 Dec;27(12):883-886.
  • Bone in the Breast: Clinical, Radiological And Pathological Correlation. Lim CHS, Leong LCH, Lim SZ, Su MN, Moey THL, Tay KYT, Tan PH. Ann Acad Med Singap. 2021 Oct;50(10):798-801.
  • Would Removal of All Ultrasound Abnormal Metastatic Lymph Nodes Without Sentinel Lymph Node Biopsy be Accurate in Breast Cancer Patients? Lim GH, Gudi M, Teo SY, Ng RP, Yan ZY, Lee YS, Allen JC, Leong LCH. Oncologist. 2020 Nov;25(11):e1621-e1627.
  • Determining The Factors Affecting the Visibilities Of Various Clips In Axillary Nodes On Magnetic Resonance Imaging (MRI). Algowiez R, Lee YS, Leong LCH, Lim GH, Teo SY. Breast J. 2020 Nov;26(11):2299-2301.
  • Extensive Florid Lobular Carcinoma-in-situ Presenting as a Large Breast Mass Requiring a Mastectomy. Tison NRR, Leong L, Tan PH, Tan VKM. Breast J. 2020 May;26(5):1025-1027.
  • Myoepithelial Hyperplasia: A Rare Mimic of Breast Cancer on 18 F-FDG PET/CT Tang CYL, Lam WW, Tan PH, Xie W, Peh WM, Tan VK, Leong LCH.  Breast J. 2020 Apr;26(4):775-777.
  • Initial Results of a Novel Technique of Clipped Node Localization in Breast Cancer Patients Post-Neoadjuvant Chemotherapy: Skin Mark Clipped Axillary Nodes Removal Technique (SMART Trial). Lim GH, Teo SY, Gudi M, Ng RP, Pang J, Tan YS, Lee YS, Win T, Leong LCH. Cancer Med. 2020 Mar;9(6):1978-1985.
  • Evaluating the Preoperative Breast Cancer Characteristics Affecting the Accuracy of Axillary Ultrasound Staging. Upadhyaya VS, Lim GH, Chan EYK, Fook-Chong SMC, Leong LCH. Breast J. 2020 Feb;26(2):162-167.
  • A Practical and Adaptive Approach to Lung Cancer Screening: Review of International Evidence and Position on CT Lung Cancer Screening in the Singaporean Population by the College of Radiologists, Singapore. Liew CJY, Leong LCH, Teo LLS, Ong CC, Cheah FK, Tham WP, Salahudeen HMM, Lee CH, Kaw GJL, Tee AKH, Tsou IYY, Tay KH, Quah R, Tan BP, Chou H, Tan D, Poh ACC, Tan AGS. Singapore Med J. 2019 Nov;60(11):554-559.
  • Rare Case of Bilateral Male Breast Myofibroblastomas with Radio-Pathological Correlation. Gambre A, Tan PH, Hamzah JL, Cheng CL, Leong LCH. Breast J. 2019 Sep;25(5):991-993.
  • Comparative Study of Pattern-Based Versus Size Ratio Ultrasound Strain Elastographic Techniques On Breast Masses. Leong LCH, Moey THL, Tan PH, Sim LSJ. Journal Ultrasound Med. 2019 Jul;38(7):1779-1790.
  • Pseudoaneurysm After Vacuum-Assisted Breast Biopsy Treated with Percutaneous Thrombin Injection. Xiang F, Gogna A, Leong LCH, Tan BKT. Breast J. 2019 Mar;25(2):318-319.
  • Determining Whether High Nodal Burden In Early Breast Cancer Patients Can Be Predicted Preoperatively To Avoid Sentinel Lymph Node Biopsy. Lim GH, Teo SY, Allen JC, Chinthala JP, Leong LCH. J Breast Cancer. 2019 Jan 30;22(1):67-76.
  • Preoperative Predictors of High and Low Axillary Nodal Burden in Z0011 Eligible Breast Cancer Patients with a Positive Lymph Node Needle Biopsy Result. Lim GH, Upadhyaya VS, Acosta HA, Adolfo-Lim JM, John C Allen JC, Leong LCH. Eur J Surg Oncol. 2018 Jul;44(7):945-950.
  • Metastasis of Primary Lung Carcinoma to Breast: An Unusual Presentation. Aw AKL, Leong LCH, Tan BKT. Breast J. 2018 May;24(3):406-407.
  • Development of a Surgical Algorithm by Using Pre-Operative Imaging to Predict Mammoplasty Cosmetic Outcomes for Large Non-Malignant Tumours. Lim GH, Ng RP, Leong LCH. Gland Surg. 2017 Dec;6(6):649-653.
  • Ultrasound Breast Elastographic Evaluation of Mass-Forming Ductal Carcinoma-in-situ with Histological Correlation : New Finding of the Toothpaste Sign. Leong LCH, Sim LSJ, Jara-Lazaro AR, Tan PH. Asian Pac J Cancer Prev. 2016; 17(5):2673-8.
  • MRI Kinetics with Volumetric Analysis in Correlation to Hormonal Receptor Subtype and Histological Grade of Invasive Breast Cancers. Leong LCH, Gombos EC (Joint 1st authorship), Jagadeesan J, Fook-Chong SMC.AJR Am J Roentgenol. 2015 Mar;204(3):W348-56.
  • Clinics in Diagnostic Imaging:  Male Breast Carcinoma. Tan TJ,  Leong  LCH, Sim  LSJ. Singapore Medical Journal 2013 Jun;54(6): 347-352.   
  • Supplementary Breast Ultrasound Screening in Asian Women with Negative but Dense Mammograms - a Pilot Study. Leong LCH, Gogna A, Pant R, Ng FC, Sim LSJ. Ann Acad Med Singap. 2012 Oct;41(10):432-9. 
  • A Prospective Study to Compare the Diagnostic Performance of Breast Elastography Versus Conventional Breast Ultrasound. Leong LCH, Sim LSJ, Lee YS, Ng FC, Wan CM, Fook-Chong SMC, Jara-Lazaro AR, Tan PH. Clin Radiol. 2010 Nov; 65(11):887-894.

 

Press/Website Publications

Research Trials