Gerlof Valk

Full Professor

Strategic program(s):

Biography

Endocrinology and endocrine oncology are the main focus of the clinical activities of Gerlof Valk. (Neuro-) endocrine tumors diagnosis, treatment and follow-up, care for patients with Multiple Endocrine Neoplasia (MEN) and the standardization and continuous improvement of the national care for patients with MEN are his specific areas of expertise. Epidemiologic and translational research within the field of MEN related (pancreatic) neuroendocrine tumors is his main research focus including innovative treatment strategies and personalized cancer care.

ACADEMIC APPOINTMENTS

2014 – today

Internist-endocrinologist, professor of endocrinology with emphasis on endocrine tumors, head of section endocrinology, program director endocrinology residency

2007 – 2014

Internist-endocrinologist, vice program director internal medicine residency

1997 – 2001

Senior researcher, Institute for Extramural Medical Research (EMGO Institute), Free University Medical Centre

DIPLOMAS AND CERTIFICATION

2007 Certification National Board of Internal Medicine and Endocrinology

2002 MSc Clinical Epidemiology

1997 PhD Thesis: ‘The diagnosing of diabetic polyneuropathy in daily clinical practice’. Free University Medical Centre, Amsterdam

1994 Certification National Board of General Practitioners

1990 MD (cum laude)

Strategic program(s):

Contact

gvalk2@umcutrecht.nl

Pure profile

Research groups

Endocrine oncology research group

Research aim

To improve diagnostics, treatment and outcome for children and adults with Rare Endocrine Tumors by interdisciplinary and international collaborative research.

Go to group

Recent publications

All publications

Real-World-Feasible Immunohistochemistry of ATRX, DAXX, and Menin Identifies a Subgroup of Non-Functioning Pancreatic Neuroendocrine Tumors with low Recurrence Risk to Guide De-Escalating Surveillance Anna Vera Ditte Verschuur, Wenzel Maximillian Hackeng, Jasvir Jairam, Busra Eldem, Jasmijn Sterre Westendorp, Menno Reginaldus Vriens, Gerlof Dirk Valk, Antonio Pea, Roberto Salvia, Rita Teresa Lawlor, Aldo Scarpa, Claudio Luchini, Christopher Michael Heaphy, Seung-Mo Hong, Ilaria Marinoni, Aurel Perren, Koen Marie Anton Dreijerink, Elisabeth Jacqueline Maria Nieveen van Dijkum, Arantza Fariña Sarasqueta, Aatur Dilip Singhi, Sjoerd Geert Elias, Lodewijk Adriaan Anton Brosens
Endocrine Pathology, 2026, vol. 37

Endocriene tumoren Gerlof Valk, Rachel van Leeuwaarde, Mark van Treijen, WT Zandee, M Medici, HW Kapiteijn, MN Kerstens, HJLM Timmers, OM Dekkers, RA Feelders, NR Biermasz, WW de Herder, AM Pereira
2025

Survival and prognostic differences between appendiceal NETs and goblet cell adenocarcinomas Kim Dijke, José van den Berg, Koert F D Kuhlmann, Sonja Levy, Gerlof D Valk, Margot E T Tesselaar
Endocrine oncology, 2025, vol. 5

Primary hypothyroidism after treatment for childhood cancer in the Dutch Childhood Cancer Survivor Study S van der Leij, Jop C Teepen, Leontien C M Kremer, Heleen J H van der Pal, M M van den Heuvel-Eibrink, Dorine Bresters, Andrica C H de Vries, A J Keijzer-Schellekens, Cecile M Ronckers, Rosella Hermens, Marloes Louwerens, Sebastian Neggers, Gerlof D Valk, H M van Santen
Cancer, 2025, vol. 131

The natural course of cystic pancreatic neuroendocrine tumours in MEN1 Eline N M van Vliembergen, Carolina R C Pieterman, Annenienke C van de Ven, Arthur J A T Braat, Gerlof D Valk, Joanne M de Laat
Endocrine oncology, 2025, vol. 5

Multiple endocrine neoplasia type 1 (MEN1) Maria Luisa Brandi, Carolina R C Pieterman, Katherine A English, Kate E Lines, Omair A Shariq, Francesca Marini, Thomas Cuny, Mark A Lewis, Constantine A Stratakis, Nancy D Perrier, Steven G Waguespack, Frederic Castinetti, Gerlof D Valk, Rajesh V Thakker, , Arthur Braat
The Lancet Diabetes & Endocrinology, 2025, vol. 13, p.699-721

External positions

Lead ENETS MEN1 taskforce - Voorzitter van taskforce van leden vanuit ENETS Centers of Excellence - ENETS

Nationaal coordinator Rare Endocrine Conditions, ENDO ERN - Coordineren van samenwerking tussen Expertise Centra Zeldzame Aandoeningen - ENDO ERN