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Visit Our Facility Centre for Stereotactic Radiosurgery (CSR) is the region’s first dedicated
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WELCOME TO

Asian Alliance Radiation & Oncology

Harnessing Technology | Enabling Hope

Asian Alliance Radiation & Oncology (AARO) is a Singapore Oncology Specialist Group focusing on targeted and non-invasive technologies for cancer treatment.

AARO established Singapore’s first independent Radiotherapy Practice in 2015, led by highly-trained and experienced radiation oncologists from the National Cancer Center Singapore, who also developed the first Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT) programs in Spine, Prostate, and Liver cancers in South-East Asia. 

AARO also provides general oncology services focusing on wellness, prevention, cancer survivorship and specialised programs to manage cancer treatment side effects.

Today, with a multidisciplinary team of oncologists and healthcare professionals from various Cancer Centers in Singapore who are well-versed in the latest cancer treatments and trends, AARO is able to provide best practices and care for our patients. 

Our growing Alliance of cancer specialists provides one-stop personalized solutions for every patient’s unique situation.

Our Cancer Specialties

Our Cancer Care

At AARO, we provide treatment for all cancers using different cancer treatments and advanced radiation therapy. Through our signature cancer clinics, we ensure that every aspect of our patients’ cancer journey is taken care of from diagnosis, to treatment, to recovery and to life after cancer.

Our Cancer Specialists

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Dr. Jonathan Teh Yi Hui

Medical Director (CSR) & Senior Consultant Radiation Oncologist

Stereotactic Radiosurgery (SRS/SBRT), Head & Neck, Pediatric, Urologic, Gastrointestinal Cancers & Sarcoma

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Dr Daniel Tan Yat Harn

Director & Senior Consultant Radiation Oncologist

Stereotactic Radiosurgery (SRS/SBRT), Brain and Spine, Breast and Prostate Cancers

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Dr David Tan Boon Harn

Medical Director (AARO) & Senior Consultant Radiation Oncologist

Stereotactic Radiosurgery (SRS/SBRT), Gynaecological, Gastrointestinal & Lung Cancers

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Dr Michelle Tseng Shu Fen

Women's & Children's Program Director & Consultant Radiation Oncologist

Women’s & Children’s Cancer, Breast and Gynae-oncology and Paediatric

Our Collaborations

What To Expect During Your First Radiation Oncology Consultation

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🧠 𝗕𝗿𝗮𝗶𝗻 𝗠𝗲𝘁𝗮𝘀𝘁𝗮𝘀𝗲𝘀 𝗶𝗻 𝗛𝗘𝗥𝟮-𝗣𝗼𝘀𝗶𝘁𝗶𝘃𝗲 𝗕𝗿𝗲𝗮𝘀𝘁 𝗖𝗮𝗻𝗰𝗲𝗿: 𝗡𝗲𝘄 𝗣𝗮𝗿𝗮𝗱𝗶𝗴𝗺 𝗼𝗳 𝗔𝗰𝘁𝗶𝘃𝗲 𝗦𝘂𝗿𝘃𝗲𝗶𝗹𝗹𝗮𝗻𝗰𝗲 & 𝗔𝗰𝘁𝗶𝘃𝗲 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁

Brain metastases have traditionally been associated with advanced cancer and limited survival. However, for patients with HER2-positive breast cancer, treatment advances have changed the outlook entirely.

The spread of cancer to the brain is relatively common in HER2-positive breast cancer. With increasingly effective treatments, some patients can now live for years after developing brain metastases.

𝗧𝗵𝗶𝘀 𝗰𝗵𝗮𝗻𝗴𝗲𝘀 𝗵𝗼𝘄 𝘄𝗲 𝗮𝗽𝗽𝗿𝗼𝗮𝗰𝗵 𝘁𝗿𝗲𝗮𝘁𝗺𝗲𝗻𝘁. The goal is no longer just to control what we see on the next MRI scan, but also to preserve brain function and quality of life over the longer term.

🎥 In this lecture, Dr Daniel Tan discusses how different treatment approaches can work together, including:

• 𝗦𝘁𝗲𝗿𝗲𝗼𝘁𝗮𝗰𝘁𝗶𝗰 𝗿𝗮𝗱𝗶𝗼𝘀𝘂𝗿𝗴𝗲𝗿𝘆 (𝗦𝗥𝗦) – precisely targeting brain metastases while minimising radiation exposure to surrounding healthy brain tissue.

• 𝗛𝗘𝗥𝟮-𝘁𝗮𝗿𝗴𝗲𝘁𝗲𝗱 𝘁𝗵𝗲𝗿𝗮𝗽𝗶𝗲𝘀 – integrating newer medications that can also act against cancer in the brain.

• 𝗠𝗮𝗻𝗮𝗴𝗶𝗻𝗴 𝘁𝗿𝗲𝗮𝘁𝗺𝗲𝗻𝘁-𝗿𝗲𝗹𝗮𝘁𝗲𝗱 𝗿𝗶𝘀𝗸𝘀 – including the prevention and management of radiation necrosis (damage to healthy brain tissue following radiation treatment).

• 𝗪𝗵𝗼𝗹𝗲-𝗯𝗿𝗮𝗶𝗻 𝗿𝗮𝗱𝗶𝗼𝘁𝗵𝗲𝗿𝗮𝗽𝘆 (𝗪𝗕𝗥𝗧) – recognising when and how to use it appropriately.

💙 𝗕𝗲𝗰𝗮𝘂𝘀𝗲 𝘁𝗿𝗲𝗮𝘁𝗶𝗻𝗴 𝗯𝗿𝗮𝗶𝗻 𝗺𝗲𝘁𝗮𝘀𝘁𝗮𝘀𝗲𝘀 𝗶𝘀 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗮𝗯𝗼𝘂𝘁 𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗶𝗻𝗴 𝗰𝗮𝗻𝗰𝗲𝗿, 𝗯𝘂𝘁 𝗮𝗹𝘀𝗼 𝗮𝗯𝗼𝘂𝘁 𝗽𝗿𝗲𝘀𝗲𝗿𝘃𝗶𝗻𝗴 𝗻𝗲𝘂𝗿𝗼𝗹𝗼𝗴𝗶𝗰𝗮𝗹 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗼𝗳 𝗹𝗶𝗳𝗲 𝗳𝗼𝗿 𝗮𝘀 𝗹𝗼𝗻𝗴 𝗮𝘀 𝗽𝗼𝘀𝘀𝗶𝗯𝗹𝗲.

Watch Dr Daniel Tan’s lecture to learn more.

#BreastCancer #HER2Positive #BrainMetastases #StereotacticRadiosurgery #RadiationOncology #AARO #CSR
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🎀 𝑭𝒓𝒐𝒎 𝑷𝒂𝒕𝒊𝒆𝒏𝒕 𝒕𝒐 𝑨𝒅𝒗𝒐𝒄𝒂𝒕𝒆 — 𝑪𝒂𝒓𝒎𝒆𝒏’𝒔 𝑱𝒐𝒖𝒓𝒏𝒆𝒚 𝑪𝒐𝒏𝒕𝒊𝒏𝒖𝒆𝒔

Some stories stay with us long after they are shared, and Carmen Loh’s is one of them 💗 We had the privilege of featuring Carmen in our AARO Stories of Hope in 2024, where she courageously shared her personal journey through breast cancer and treatment >> aaro.sg/where-the-beauty-of-the-spirit-triumphs/

This October, Carmen took her vision a step further by initiating and organising 𝐁𝐞𝐲𝐨𝐧𝐝 𝐏𝐢𝐧𝐤 𝟐𝟎𝟐𝟔, bringing together cancer survivors, medical specialists and the community for meaningful conversations about cancer care and life beyond treatment.

Dr Daniel Tan was invited to join Carmen’s panel discussion, “4 Experts, 4 Perspectives, 1 Cancer Journey,” where he shared about the role of advanced radiation technologies as the last line of defense in cancer care. Alongside were also specialists in breast surgery, and reconstructive plastic surgery.

The conversation explored not only advances in cancer treatment, but also the emotional, practical and financial considerations that patients and their families face along the way.

What makes this especially meaningful to us is seeing someone who once shared her own cancer journey now creating opportunities to support and empower others💕

#BeyondPink2026 #BreastCancerAwareness #AARO #CancerSurvivor #PatientAdvocacy #CancerCare #radiationoncology #aarocares #latestage #breastcancer
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🎗️ 𝘽𝙧𝙚𝙖𝙨𝙩 𝘾𝙖𝙣𝙘𝙚𝙧 𝘼𝙬𝙖𝙧𝙚𝙣𝙚𝙨𝙨 𝙈𝙤𝙣𝙩𝙝 🎗️

At 29, junior doctor Dr Wang Liting 👩‍⚕️ was diagnosed with breast cancer after getting a second opinion. She had no family history and no obvious risk factors. 💔

She understood the medicine 📚, but her books couldn't teach her how to feel. Through surgery, radiation therapy and setbacks, she found support in her radiation oncologist, Dr Michelle 💗, and Team AARO, who treated her as a person, not just another cancer case. 🤝

Her message to other women 🌸: lean on people, don't compare journeys, and remember that getting through an appointment is a victory too. 🏅

This #BreastCancerAwarenessMonth 🎀, 𝐰𝐞 𝐡𝐨𝐧𝐨𝐮𝐫 𝐞𝐯𝐞𝐫𝐲 𝐰𝐨𝐦𝐚𝐧 𝐰𝐡𝐨 𝐢𝐬 𝐫𝐞𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐡𝐞𝐫 𝐥𝐢𝐟𝐞 𝐚𝐟𝐭𝐞𝐫 𝐜𝐚𝐧𝐜𝐞𝐫, 𝐨𝐧𝐞 𝐝𝐚𝐲 𝐚𝐭 𝐚 𝐭𝐢𝐦𝐞. 💕

👉 𝗪𝗮𝘁𝗰𝗵 𝗵𝗲𝗿 𝘀𝘁𝗼𝗿𝘆:

#PinkOctober #BreastCancerSG #Singapore #Radiotherapy #AAROCares #CancerSurvivor #WomenInMedicine 🎗️
...

Congratulations Mr Dexter Sng on your strength and resilience throughout your treatment! Prostate VMAT under Dr Jonathan Teh, with AARO at Centre for Stereotactic Radiosurgery ...

🎙️ 𝐀𝐀𝐑𝐎 𝐱 𝐎𝐧𝐜𝐨𝐂𝐚𝐫𝐞 @ 𝐈𝐧𝐝𝐨𝐧𝐞𝐬𝐢𝐚 𝐂𝐚𝐧𝐜𝐞𝐫 𝐄𝐝𝐮𝐜𝐚𝐭𝐢𝐨𝐧 𝐎𝐮𝐭𝐫𝐞𝐚𝐜𝐡

Dr Jonathan Teh Yi Hui, Senior Consultant Radiation Oncologist and Medical Director of the Centre for Stereotactic Radiosurgery (CSR), joined our long-standing partners OncoCare Cancer Centre on their recent regional cancer education outreach symposium.

Dr Teh shared his expertise on the evolution of radiotherapy, from conventional techniques to today's advanced, precision-guided treatments, with patients, caregivers and the public, including in a feature interview on 𝗞𝗼𝗺𝗽𝗮𝘀 𝗧𝗩'𝘀 "𝗕𝗶𝗻𝗰𝗮𝗻𝗴 𝗞𝗶𝘁𝗮".

“Using the right tool for the right situation, based on evidence and experience, allows radiation oncologists to give hope to advanced cancer patients by eliminating their cancers while preserving their quality of life," he said.

As trusted collaborators for more than a decade, AARO has been providing in-house radiation oncology support to OncoCare Cancer Centre, and this trip reflects that continued partnership in bringing quality, personalised cancer care to patients across the region.

📰 We are glad that this visit led to meaningful conversations around early detection and personalised treatment planning

🔗 www.inews.id/lifestyle/health/diagnosis-kanker-sama-kenapa-pengobatannya-bisa-berbeda-ini-penjela...
🔗 kesehatan.liputan6.com/info-sehat/read/8294646/salah-urutan-pengobatan-kanker-bisa-memengaruhi-pi...
🔗 mediaindonesia.com/kesehatan/935164/strategi-deteksi-dini-dan-personalisasi-pengobatan-kanker-di-...
🔗 www.viva.co.id/gaya-hidup/1929573-kanker-sudah-terdeteksi-haruskah-pengobatan-langsung-dimulai-in...

#AARO #OncoCare #RadiationOncology #StereotacticRadiosurgery #CancerCare #PersonalisedMedicine
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Congratulations Ms Pang Kok Fong on your strength and resilience throughout your treatment! Breast Cancer under Dr Michelle Tseng, with AARO at Centre for Stereotactic Radiosurgery

#radiotherapy #AAROCares #3DRT #breastcancer #oncologysingapore @
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Congratulations Ms Siti on your strength and resilience throughout your treatment! Endometrial Cancer under Dr Michelle Tseng, with AARO at Centre for Stereotactic Radiosurgery

#radiotherapy #AAROCares #VMAT #pelviccancer #oncologysingapore
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Congratulations Mr Nghiem Xuan Son on your strength and resilience throughout your treatment! Prostate SBRT under Dr Jonathan Teh, with AARO at Centre for Stereotactic Radiosurgery

#radiotherapy #AAROCares #SBRT #oncologysingapore #prostatecancer
...

"𝗪𝗵𝘆 𝘁𝗿𝘆 𝘀𝗼 𝗵𝗮𝗿𝗱? 𝗜𝘁'𝘀 𝗽𝗮𝗹𝗹𝗶𝗮𝘁𝗶𝘃𝗲 𝗮𝗻𝘆𝘄𝗮𝘆."

Time to retire that mindset. Advanced cancer care today isn't one-dimensional or passive — it's personalized, coordinated, and built around what matters most to each patient.

Join Dr David Tan as he unpacks how modern oncology combines systemic therapy, local treatment, and active supportive care around clearly-defined patient priorities — because survival isn't the only victory that counts.

🔑 Multidisciplinary. Active. Patient-centered.

Join us to reframe palliative oncology
...

𝗪𝗵𝘆 𝘁�