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Dr Tan Hwei Ching Grace from National Cancer Centre Singapore

Adj Assoc Prof Tan Hwei Ching Grace



National Cancer Centre Singapore

Specialty: Surgical Oncology, Surgical Oncology

Sub-specialties: Sarcoma, Peritoneal-based Malignancies, Colorectal, Skin & Melanoma, Upper Gastrointestinal

Conditions Treated by this Doctor:
Colorectal Cancer, Melanoma, Peritoneal based Malignancies, Sarcoma, Skin Cancer, Upper Gastrointestinal Cancers.

Clinical Appointments

  • Consultant Division of Surgical Oncology National Cancer Centre SingaporeNational Cancer Centre Singapore

Academic Appointments

  • Adjunct Associate Professor


Dr. Grace Tan graduated from Guy’s King’s and St Thomas’s College of Medicine in London, UK in 2005. Since then, she returned to complete her surgical training at Singapore General Hospital and the National Cancer Centre Singapore. As a specialist, her focus is in Gastrointestinal Cancers, Peritoneal and Pelvic malignancy and Sarcomas. She has published extensively in these areas, and despite her research endeavours, her passion is in providing the best holistic care for patients with cancer. 

In 2016, she completed her fellowship training in Peritoneal Malignancy at the NHS Peritoneal Malignancy Unit in Basingstoke, UK; and pelvic oncology training at King Chulalongkorn Memorial Hospital, Bangkok, Thailand. The Basingstoke Peritoneal Malignancy Unit is one of two expert centres in the entire United Kingdom, and a leading institution in the world for the treatment of peritoneal-based malignancies, and has performed over 1200 Cytoreductive Surgery (CRS) and Hyperthermic Intraperitoneal Chemotherapy (HIPEC) procedures. The King Chulalongkorn Hospital in Bangkok is one of the largest tertiary referral hospitals in Thailand and with internationally recognised expertise in the management of advanced pelvic cancers. 

Dr. Tan is also a clinical tutor at the Yong Loo Lin School of Medicine at the National University of Singapore, an Adjunct Instructor with SingHealth Duke-NUS Oncology Academic Clinical Programme, and a Physician faulty of the Singapore General Hospital Residency programme. She believes that the education of the next generation of doctors is an integral part of the art of medicine.


  • MBBS, 2000-2005, Guy’s King’s and St Thomas’ School of Medicine, London, UK 
  • MRCS, The Royal College of Surgeons of Edinburgh, Oct 2011 
  • MMED, Dec 2012, National University of Singapore, Singapore 
  • FRCS (General Surgery), Aug 2014, The Royal College of Surgeons of Edinburgh

Professional Appointments and Committee Memberships

  • Committee Member, National Cancer Centre Singapore Cancer Service Line Development Gastrointestinal Workgroup
  • Committee Member and Track Organiser, Scientific Committee for SingHealth Duke-NUS Surgical & Anaesthesia Congress 2017 
  • Physician Faculty, Singhealth General Surgery Residency 
  • Member, Gastrointestinal and Sarcoma Clinical Trial Steering Committees, National Cancer Centre Singapore
  • Adjunct Instructor, Duke-NUS Graduate Medical School, Singapore 
  • Clinical Tutor and Faculty, Yong Loo Lin School of Medicine, National University of Singapore 


  • RiSE Awards – Outstanding Faculty Award Aug 14 
  • SingHealth Residency 

Publications and Research Trials

  • The modified glasgow prognosis score predicts for overall and disease-free survival following cytoreductive surgery and hipec in patients with pseudmyxoma peritonei of appendicieal origin. G TAN, CA NOVO, S DAYAL, K CHANDRAKUMARAN, F MOHAMED, T CECIL, BJ MORAN Eur J Surg Oncol. 2017 Feb;43(2):388-394 
  • 201 consecutive cytoreductive surgery (crs) and hyperthermic intraperitoneal chemotherapy (hipec) procedures in a single asian tertiary centre. G TAN, C CHIA, KUMAR M, CHOO SP, CHIA J, THAM CK, CHUA C, SOO KC, M TEO Int J Hyperthermia. 2016 Dec 14:1-7. 
  • Role of upfront surgery for recurrent gastrointestinal stromal tumors (GIST). G TAN, J WONG, R QUEK, B GOH, S PAN, KC SOO, M TEO ANZ J Surg. 2016 Nov; 86(11):910-915 
  • Proposed radiological criteria for pre-operative determination of resectability in peritoneal-based malignancies. G TAN, JW KWEK, R HOSSEINI, J CHANYAPUTHIPONG, CK THAM, KC SOO, M TEO J Med Imaging and Radiat Oncol 2016; 60(3):337-43 
  • Does early post-operative intraperitoneal chemotherapy (epic) for patients treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (hipec) make a difference? G TAN, WZ ONG, C CHIA, CK THAM, KC SOO, M TEO Int. J Hyperthemia 2016 May;32(3):281-8 
  • Cytoreductive surgery and hipec for colorectal cancer: facing the facts and addressing the issues to allow for widespread acceptance. G TAN, M TEO Accepted for publication in Singapore medical Journal Quality of life in patients with colorectal carcinomatosis peritonei after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy. G TAN, C CHIA, M TEO European Journal of Cancer Jul 2015 5(Suppl 2): e28 - e28 Cytoreductive surgery (crs) and hyperthermic intraperitoneal chemotherapy (hipec) for peritoneal mesothelioma: a case series. G TAN, M TEO, M CHEUNG, J CHANYAPUTHIPONG, SOO KC Annals of Academy of Medicine Singapore June 2013 46(2):291-296 
  • Surgical treatment of colorectal peritoneal metastases: treatment and outcomes compared with hepatic metastases. G TAN, M TEO, CHEN W, LEE SY, NG DW, THAM CK, SOO KC Journal of Gastrointestinal Cancer 2013 Jun;44(2):170-6 
  • Hypoglycaemia in a 63-year-old female with a large, recurrent, metastatic gastrointestinal tumour (GIST). G TAN, M TEO, SP CHOO Journal of Gastrointestinal Cancer 2011, 42:263–265

Research Trials