Leonard Hwan Cheong Tan, Leonard Hwan Cheong Tan, MBBS, FRCPath
Leonard Hwan Cheong Tan is a senior consultant histopathologist at the Department of Pathology, Singapore General Hospital, and the chief pathologist in the Lymphoma work group at the National Cancer Centre, Singapore. He received his MBBS degree in 1989 from the National University of Singapore, followed by specialization in Pathology at Singapore General Hospital. He was elected Member of the Royal College of Pathologists in London in 1999, and became a Fellow in 2007. In 2004 he was inducted into the Faculty of the Academy of Medicine, Singapore.
He has a long-standing interest in the pathology of lymphoproliferative disorders and continues to develop his expertise in expanding the diagnostic armamentarium against them. His specific research projects have included the immunoarchitectural and molecular genotypic dissection of the diagnostic “grey zone” between Hodgkin and non-Hodgkin lymphomas, particularly peripheral T-cell lymphoma with immunodysregulatory escape of large B-cells, including angioimmunoblastic lymphoma and its sequelae. In 2002-2003 he completed a visiting research fellowship in Haematopathology at Weill Cornell Medical College at New York-Presbyterian Hospital, under the tutorship of Dr Daniel Knowles, a member of the WHO’s International Lymphoma Study Group.
He has been published in a number of peer-reviewed journals, including Pathology, Histopathology, and Hematological Oncology.