1. **“The times they are a-changin. How molecular pathology changed practice of brain tumor diagnosis”. Asian Society of Neuro-oncology, Taipei, September 2019
2. **“The times they are a-changin. How molecular pathology changed practice of brain tumor diagnosis”. Annual meeting of Hong Kong Division of the International Academy of Pathology, April 2019, Hong Kong
3. “The times they are a-changin. How molecular pathology changed practice of brain tumor diagnosis”. Annual Meeting of Chinese Society of Neuropathology, March 2019, Shenzhen
4. “Workshop on professionalism in medical education” Asian Pacific Medical Education Conference, Singapore, Jan 2019
5. “Algorithm of brain tumor molecular diagnostics”. Third Molecular Pathology Course, Griffith University Goldcoast, May 2019
6. “Gliomas, the good, the bad and the ugly” International Congress of Neurosurgeons, Hua Shan Hospital, Fudan University, Shanghai, Decebmer 2018
7. “Are all IDH wt lower grade gliomas glioblastomas in disguise?” Annual Meeting of Guangdong Society of Oncology, Guangzhou, December 2018
8. ***“Smear diagnosis in brain tumors?” and “What WHO2016 can do more for adult gliomas?” 14th Meeting of the Philippine Society of Pathology, Clark, November, 2018
9. **”Surgical Neuropathology” Hong Kong Division of International Academy of Pathology, Hong Kong, November 2018
10. “Can pediatric low grade gliomas by diagnosed by histology alone ?” Asian Congress of Neuro-oncology, Beijing, October 2018
11. “Can pediatric low grade gliomas by diagnosed by histology alone ?” Chinese Congress of Pediatric Neuro-oncology, Haikou, June 2018
12. “Are IDH wt lower grade gliomas glioblastomas in disguise ?” International Congress of Neuropathology, Tokyo, October, 2018
13. Short course. “Diagnosis and molecular pathology of pediatric gliomas”. European Congress of Pathology, Bilbao, Spain, September 2018
14. **“Can Pediatric gliomas by adequately diagnosed by histology ?” Annual Meeting of Chinese Society of Neuropathology, Fuzhou, May, 2018
15. **“Can pediatric low-grade gliomas really be diagnosed by histology ?” Joint Meeting of Society of Neuro-oncology (USA) and Chinese Society of Neuro-oncology, Guangzhou, March 2018
16. **Brain tumor course. Annual Meeting of Pakistan Division of the International Academy of Pathology, Lahore, April, 2018
17. Title to be determined. 10th Annual Meeting of Indian Society of Neuro-oncology, April 5-8, 2018. Dehli
18. “Molecular pathology of brain tumors”, Molecular Pathology Course, Griffith University, Gold Coast, Australia, February, 2018
19. Workshop “Professionalism in Practice” (jointly with Shekhar Kumta). 15th Asia Pacific Medical Education Conference, Singapore, January, 2018
20. “Can pediatric low grade gliomas be diagnosed by histology” International Brain Tumor Symposium, November 2017, Taipei
21. “Trainee course on brain tumors. Hong Kong Division of International Academy of Pathology, November, Hong Kong, November 2017
22. Quality Assurance of Internship Training in Hong Kong” – 16th Conference of the Medical Education Association of China, Taiwan and Hong Kong, October 2017, Taipei
23. **“Can molecular pathology supersede histology in diagnosing brain tumors ?”, as First Keynote Speaker, 10th Asia Pacific International Academy of Pathology Conference, April 2017, Bali
24. “Can molecular pathology supersede histology in diagnosing brain tumors ?” Chinese Pathologist Association Annual Meeting, March 2017, Beijing
25. “Basic principles of brain tumor diagnosis”. International Academy of Pathology (IAP) Workshop, January 2017, Phnom Penh
26. “Young adult glioblastoma” International Brain Tumor Symposium, Taipei Medical University, December 2016, Taipei
27. “WHO Classification 2016” Asia Pacific Society of Neuro-immunohistochemistry, December 2016, Taipei
28. “Challenges of neuro-oncology in adolescents/young adults” – 12th European Association of Neuro-oncology. October 2016, Heidelberg/Mannheim
29. “Practical molecular diagnosis of brain tumors” – National Neuropathology Course, Fudan University, August 2016, Shanghai
30. “Protocols of pediatric brain tumor diagnosis” Pediatric Oncology Symposium, Hong Kong University, Binhai Hospital, June 2016, Shenzhen
31. “WHO Classification 2016” – National meeting of Neuropathology of Chinese Society of Pathology, April 2016, Xiamen
32. “WHO Classification 2016” – International Glioma Conference, Fudan University, May 2016, Shanghai
33. “WHO classification 2016” – International Pediatric-Neuro-oncology Conference, Taipei Medical University, April 2016, Taipei
34. “WHO Classification 2016” Joint Meeting of Society of Neuro-oncology (SNO)(USA) and Chinese Society of Neuro-oncology, March 2016, Guangzhou
35. “To go or not to go ? Is this a question any more ?” Annual Meeting of the United States and Canadian Academy of Pathology , March 2016, Seattle
36. **“What everyone needs to know for molecular pathology of brain tumors” Hospital Authority Commissioned Training for Neuro-oncology, January 2016, Hong Kong
37. “WHO 2016 classification of brain tumors” Pathology Workshop organized by International Academy of Pathology, January 2016, Yangon
38. “WHO 2016 classification of brain tumor” Annual Meeting of the Guangdong Neuro-Oncology Society, November 2015, Dongguan
39. “Mistakes in Surgical Neuropathology”, European Congress of Neuropathology, September 2015, Belgrade
40. “WHO needs neuropathologists” and “Molecular pathology of brain tumours”. Ninth Asia Pacific Congress of the International Academy of Pathology, June 2015, Brisbane
41. “Pathologie sans frontieres” United States and Canadian Academy Annual Meeting, March 2015, Boston
42. “Molecular Brain Tumor diagnosis” National Neuro-oncology course, Hua Shan Hospital, Fudan University, April 2015, Shanghai
43. **“Pediatric Brain Tumors” Neuropathology Workshop, Chinese Division of International Academy of Pathology, April 2015, Beijing
44. “WHO needs neuropathologists ?” Combined meeting of Society of Neuro-oncology (SNO) (USA) and Chinese Society of Neuro-ocnology (CSNO) , March 13-15, 2015, Guangzhou
45. “Molecular Pathology of Lower Grade Gliomas”, National Neuro-oncology Course, Chinese Society of Neuro-oncology, November 2014, Guangzhou
46. “Molecular pathology of lower grade gliomas” – Third Congress of the Asian Society of Neuropathology, November 2014, Seoul
47. “Molecular typing of paediatric brain tumors in routine histology laboratories – a project supported by Children Cancer Foundation” Annual Scientific Meeting of Paediatric Haematology and Oncology Group, Hospital Authority, September 2014, Hong Kong
48. “Reporting molecular findings in routine practice, with reference for the 2016 WHO classification update” European Congress of Pathology, September 2014, London
49. ““What paediatric oncologists need to know from the pathology reports of brain tumors?” 45th Congress of the International Society of Paediatric Oncology (SIOP), September 2013, Hong Kong
50. WHO 2016 – oligodendroglial tumors and mixed gliomas” and “Slide seminar in neuropathology ?” 30th International Congress of the International Academy of Pathology, October 2014, Bangkok
51. “The next WHO classification” National Neuro-oncology Workshop, April 2014, Shanghai
52. “Back to the future. The next WHO”. 18th Convention of the Academia Eurasiana Neurochirugica (AEN), March 2014, Hong Kong
53. **Course director & speaker, Neuropathology II, International Academy of Pathology and Association of Directors of Pathology of China, September 2013, Hong Kong
54. **Conference chair. Joint Conference of the Journal of Pathology and Histopathology and Association of Directors of Pathology of China, October 2013, Shenzhen,
55. “Does pathology suffer in an integrated medical curriculum – views from the Far East ?” European Congress of Pathology, September 2013, Lisbon
56. “The molecular classification of medulloblastoma”, Eighth Congress of the Asia Pacific International Academy of Pathology (APIAP), Busan, September 2013
57. “Biomarkers for oligodendrogliomas. 1p19q and beyond” Annual Meeting of the Chinese society of Neuro-oncology, August 2013, Kunming
58. “Brainstem glioma” – Commissioned training lecture for Neurosurgery, Hospital Authority of Hong Kong. January 2014, Hong Kong
59. “Surgical neuropathology”, First Pacific Pathology Symposium, organized by the Royal College of Pathologists of Australasia and the Australian Division of the International Academy of Pathology, Suva, April, 2013
60. “What neurosurgeons and neuro-oncologists need to know for the IHC of pathology reports”. International Symposium of Paediatric Neuro-oncology, Taipei Veterans General Hospital, Taipei, March, 2013
61. “microRNA and the pathogenesis of medulloblastoma” – Joint conference of Association of Neuro-oncology (SNO)(USA) and Chinese Association of Neuro-oncology, Shenzhen, March 16, 2013
62. “Immunohistochemistry in in surgical neuropathology” – Pathology Course organized by the International Academy of Pathology, Manila, December 2012
63. “An update of medulloblastoma” – Pathology Workshop by Cleveland Clinic. December 2012, Guangzhou
64. “Immunohistochemistry in surgical neuropathology” Pathology course organized by the International Academy of Pathology. Phnom Penh, November, 2012
65. “Slide seminar in surgical neuropathology” – Pathology Course organized by International Academy of Pathology, August, 2012, Urumuqi
66. Workshop on “Non-histopathological diagnosis of brain tumours” (co-speaker), Tenth European Congress of Neuropathology, Edinburgh, June 2012
67. Workshop on “Molecular Pathology of Brain Tumours” (Central “Commissioned” Training) by the Hospital Authority, Hong Kong, together with Dr Stephen Yip, Vancouver, Hong Kong, May 25-26, 2012
68. “An update of medulloblastoma” – Inauguration ceremony of State Key Clinical Centre of Neurosurgery, Xiangya Hospital, Changsha, January 2012
69. “Neuro-muscular pathology” – Annual Meeting of Shenzhen Society of Pathology, Shenzhen, December 23, 2011
70. “Molecular Pathology of Medulloblastoma”, Fourth Annual Meeting of Neuro-oncology of Veterans Hospital, Taipei, November 30-Dec 1, 2011
71. **“Molecular Pathogenesis of Medulloblastoma”, Second Congress of Asian Society of Neuropathology, Beijing, November 5-6, 2011
72. “Molecular Pathogenesis of Medulloblastoma”, Annual Meeting of Guangdong Society of Neuro-oncology, Huizhou November 29, 2011
73. “Miss and near-miss in surgical neuropathology” – European Congress of Pathology, Helsinki, August 29, 2011
74. “Advances in Molecular diagnostics in neuro-oncology”, Eighth Congress of the Asian Society of Neuro-Oncology, May, 2011, Suzhou
75. “How should a national pathology service make use of advances in molecular neuropathology ?” and “Pathology Education without national boundaries” - Seventh Congress of Asia Pacific International Academy of Pathology, May 21-24, 2011, Taipei
76. **“Molecular pathogenesis of medulloblastoma” and “Pathology of non-criminial Head Injury” – National Neuropathology Meeting, April 2011, Chongqing
77. “Recent advances in medulloblastoma” – International Paediatric Tumour Conference, December 18, 2010, Taipei
78. **Course director and speaker, Neuropathology I, organized by the International Academy of Pathology, January 2011, Hong Kong
79. **“How pathologists need to do respond to the impact of molecular diagnostics ? Lessons from neuron-oncology” and Slide Seminar lectures, Annual Meeting of the Indian Division of International Academy of Pathology, Hyderabad, December 9-10, 2010
80. “WHO classification with relevance to Paediatric Tumours” – Asian Australian Advanced Course on Paediatirc Neurosurgery (Sponsored by European Society of Pediatric Neurosurgery and World Federation of Neurosurgery), September 22-24, 2010, Hong Kong
81. **“Quality Assurance of Interns” – Twelfth meeting of the Medical Education Association of China, Taiwan and Hong Kong. November 18-22, 2009, Naning
82. “Are there better ways to make use of molecular pathology of brain tumours ?” International Symposium of Pediatric Neuro-oncology, Taipei, October 31-Nov1, 2009
83. “Controversies in molecular testing for brain tumours” – Third Conjoint Meeting of Shanghai Cancer Hospital and MD Anderson Cancer Hospital, Shanghai, June 5-6, 2009
84. “2007 WHO Classification of CNS tumours – views from one participant” – The Sixth Asia Pacific International Academy of Pathology Meeting, August 20-23, 2009, Kochi
85. “An update on molecular diagnostics of brain tumours” – First Congress of Asian Society of Neuropathology, Tokyo, May 20-22, 2008
86. “The 2007 WHO classification of CNS tumours” and “Molecular Diagnosis of brain tumours” – The Fifth Asia Pacific Meeting of the International Academy of Pathology, May 27-29, 2007, Singapore
87. **“The 2007 WHO classification of CNS tumours – some preliminary views”. The T.B. Teoh Lecture of the Annual Meeting of the Hong Kong College of Pathologists, Hong Kong, November 25, 2006
88. “Ependymomas. The 2007 WHO classification” – 2006 Conference of Asia Academic Neurosurgeons, Shanghai, November 10-11, 2006
89. “Surgical Pathology of Infectious Diseases of the Nervous System” and “Neuropathology Slide Seminar” – Centennial Congress of the International Academy of Pathology, September 16-21, 2006, Montreal
90. “Molecular genetics of oligodendrogliomas” – Fourth Meeting of the Asian Society of Neuro-oncology, October 2005, Taipei
91. “Practical classification and grading of meningiomas” – European Congress of Pathology, Paris, September 1-3, 2005
92. “Molecular pathology of brain tumors” – Fourth Asia Pacific International Academy of Pathology Meeting, August 22-26, Beijing
93. “Meningiomas, types, grading genetics and differential diagnosis” – XXV International Congress of the International Academy of Pathology, October 10-15, 2004, Brisbane
94. “Neuropathology Slide Seminar” – XXV International Congress of the International Academy of Pathology, October 10-15, 2004, Brisbane
95. “What Neurosurgeons Need to know about molecular genetics of brain tumours” – Third Meeting of the Asian Society of Neuro-oncology, Shanghai, November 18-21, 2004