Overview
The Tan Tock Seng Hospital Department of Rheumatology, Allergy and Immunology (TTSH RAI) is a major tertiary specialist centre in Singapore that provides care to patients with rheumatologic, allergic and immunologic conditions. Our vision is “To be an internationally recognised centre dedicated to excellence in patient care, training and research within a nurturing environment”.
TTSH RAI originated as a Rheumatology service in Medical Unit IV (MU IV) in 1979, led by the late Professor Feng Pao Hsii, the Father of Rheumatology in Singapore. The Clinical Immunology/Allergy service was subsequently added in 1988.
On 1 January 1992, the Department of Rheumatology and Immunology was formally established. On 1 January 2001, the Department of Rheumatology, Allergy & Immunology was renamed to officially include our strategic development of clinical services, education and research in allergy and clinical immunology.
We are dedicated to providing state-of-the-art diagnosis and treatment for a wide range of conditions, including rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, systemic lupus erythematosus, systemic sclerosis, anti-phospholipid syndrome, autoimmune myositis, anaphylaxis, angioedema, drug/food/insect venom allergy, and inborn errors of immunity (IEI, used to known as primary immunodeficiency).
TTSH RAI was awarded the Centre of Excellence by the Asia Pacific League of Associations for Rheumatology (APLAR) and the Asia Pacific Association of Allergy, Asthma and Clinical Immunology (APAAACI) in 2023 and the World Allergy Organisation (WAO) in 2024 as recognition for our achievements and dedication to clinical, educational, and academic excellence.
Our department is also passionate and dedicated towards undergraduate and postgraduate medical education. We are the primary clinical training partner for Lee Kong Chian School of Medicine, Nanyang Technological University, and an affiliated teaching hospital of Yong Loo Lin School of Medicine, National University of Singapore. In addition, we are a training centre for the National Healthcare Group Rheumatology Residency Programme and support other postgraduate training programmes, including Internal Medicine, Family Medicine, and Graduate Diploma in Family Medicine. Internationally, we have been a training site for clinical fellows from the Asia Pacific region.
The Autoimmune Research Laboratory (ARL) was established in 1994 to research autoimmune systemic rheumatic diseases. In 1999, it was restructured into the Clinical Immunology Laboratory (CIL), which supports the clinical services of RAI and TTSH, and the Immunology Research Laboratory (IRL), which supports our research in rheumatology, clinical immunology, and allergy.
Head of Department: Adjunct Associate Professor Kong Kok Ooi