Dr. Parveen Ahlawat

MBBS, DNB, DMRT, Fellowship (London)

Consultant – Radiation Oncology

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Rajiv Gandhi Cancer Institute & Research Centre, Rohini, New Delhi - 110085

About

Dr. Parveen Ahlawat is a distinguished radiation oncologist with over a decade of experience in treating various types of cancer. He has been a vital part of the Rajiv Gandhi Cancer Institute & Research Centre in New Delhi for the past 13 years. He has been exclusively practicing and treating Head and Neck Cancers (Cheek, Tongue, Jaw, Throat, Neck, etc.) and Brain Tumors (especially Glioblastoma) for more than 10 years.

Dr. Ahlawat is proficient in the latest radiotherapy technologies, including CyberKnife, Tomotherapy, IGRT, SRS, and SBRT. His passion for the field is evident through his active involvement in teaching and training postgraduate radiation oncology students and delivering lectures at international conferences.

Dr. Ahlawat’s educational journey includes an MBBS degree from CMC Vellore, a DNB in Radiation Oncology from RGCI & RC New Delhi, and a DM RT from CMC Vellore. He also pursued a prestigious Fellowship in Oncology at The Royal Marsden Hospital, London. He also pursued training for CyberKnife in the USA.

Dr. Ahlawat has trained numerous oncologists in the treatment of head and neck cancer and is also dedicated to managing the complications associated with these treatments. His expertise and commitment to the field have earned him invitations to deliver training, talks, and lectures on head and neck cancer treatment. Dr. Ahlawat has mentored many new oncologists, fostering the next generation of cancer treatment specialists.

Dr. Ahlawat is renowned for his expertise in treating head and neck cancers and brain tumors. Many of his research studies in head and neck cancer have been presented at ASTRO and ESTRO, the most prestigious oncology societies in the USA and Europe. He has successfully conducted numerous workshops to train other radiation oncologists in the safe and effective delivery of radiotherapy for head and neck cancer. He has also been conducting conferences where he provides live demonstrations on how to deliver high quality radiotherapy for head and neck cancer and brain tumour, significantly contributing to the education and skill development of fellow radiation oncologists. His research contributions are extensive, with numerous publications in esteemed international journals.

Many patients seek Dr. Ahlawat for a second opinion, and he is considered one of the most sought-after oncologists for treatment of head and neck cancer and brain tumours. His dedication to patient care and expertise in the field makes him a trusted choice for many.

Specialized Areas

Head and Neck Cancers (Cheek, Tongue, Jaw, Throat, Neck, etc.)
Brain Tumors (especially Glioblastoma)
IGRT (Image-Guided Radiation Therapy)
CyberKnife
TomoTherapy
SRS (Stereotactic Radiosurgery)
SBRT (Stereotactic Body Radiation Therapy)

Educational Background

MBBS – Christian Medical College Vellore (CMC Vellore)
DNB (Radiation Oncology) – Rajiv Gandhi Cancer Institute & Research Centre, New Delhi
DMRT (Radiation Oncology) – Christian Medical College Vellore (CMC Vellore)
Fellowship (Radiation Oncology) – The Royal Marsden Hospital, London, UK

Experience

2012 till Present: Rajiv Gandhi Cancer Institute & Research Centre, New Delhi

Professional Journey

Achievements

Training from top medical colleges and institutions.
Fellowship in oncology from The Royal Marsden Hospital, London.
More than 70 research publications on the treatment of head and neck cancers.
Reviewed multiple research articles in various international journals.
Invited to teach and train other radiation oncologists in head and neck cancer radiotherapy.
Numerous awards and recognitions in his professional career.
Delivered various talks and lectures at international conferences.

Research and publications in international journals

Health-related quality of life assessment for head-and-neck cancer patients during and at 3 months after radiotherapy – A prospective, analytical questionnaire-based study. National Journal of Maxillofacial Surgery. 2019.
Prognostic factors, failure patterns and survival analysis in patients with resectable oral squamous cell carcinoma of the tongue. Radiation Oncology Journal. 2019.
Re-irradiation with IMRT for recurrent head and neck cancer: A single-institutional report on disease control, survival, and toxicity. Reports of Practical Radiotherapy and Oncology. 2017.
Use of definitive locoregional radiotherapy for consolidation in de-novo metastatic head and neck cancer responding to systemic therapy. Indian Journal of Cancer. 2021.
Effectiveness of Head-and-Neck Molecular Imaging Reporting and Data System Criterion in Head-and-Neck Squamous Cell Carcinoma PostConcurrent Chemoradiotherapy. Indian J Nucl Med. 2023.
Depth of invasion as a predictor of survival in stage III squamous cell carcinoma of the oral tongue. The Laryngoscope. 2021.
Tumour volumes: Predictors of early treatment response in locally advanced head and neck cancers treated with definitive chemoradiation. Reports of Practical Radiotherapy and Oncology. 2016.
Utilization and incorporation of tumor volume data in staging and prognostication of head and neck squamous cell carcinoma treated with definitive radiotherapy: A systematic review. Asian Journal of Oncology. 2015.
Failure patterns of head and neck squamous cell carcinoma treated with radical radiotherapy by intensity modulated radiotherapy technique using focal volume and dosimetric method. Head Neck. 2019.
Comparison between chemotherapy (weekly cisplatin) enhanced radiotherapy and biotherapy (cetuximab) enhanced radiotherapy in locally advanced head and neck cancer – first retrospective study in Asian population. Asia-Pacific Journal Of Clinical Oncology. 2016.
Sinonasal teratocarcinosarcoma treated with surgery followed by volumetric modulated radiotherapy: a case report with review of literature. Radiation Oncology Journal. 2018.
Randomized controlled study comparing simultaneous modulated accelerated radiotherapy versus simultaneous integrated boost intensity modulated radiotherapy in the treatment of locally advanced head and neck cancer. Journal of the Egyptian National Cancer Institute. 2018.
Dosimetric impact of set up errors in head and neck cancer patients treated by Image guided radiotherapy. Journal of medical physics. 2016.
Weekly versus three-weekly cisplatin based concurrent chemoradiotherapy as definitive treatment in head and neck cancer- where do we stand? Gulf Journal of Oncology. 2016.
Dosimetric Comparison between Intensity Modulated Radiotherapy and 3 Dimensional Conformal Radiotherapy in the Treatment of Rectal Cancer. Asian Pacific Journal of Cancer Prevention. 2016.
Improving the accuracy of target volume delineation by combined use of CT, MRI and PET in head and neck carcinomas. Journal of Cancer Research and Therapeutics. 2015.
Radiation-induced dental caries, prevention and treatment – A systematic review. National Journal Of Maxillofacial Surgery. 2015.
Retrospective analysis of treatment outcomes following reirradiation in locoregionally recurrent head and neck cancer patients: A single institutional study. Asian Pacific Journal of Clinical Oncology. 2015.
Dental Pulp Status of Posterior Teeth in Patients with Oral and Oropharyngeal Cancer Treated with Concurrent Chemoradiotherapy. Journal of Endodontics. 2015.
Dental pulp status of posterior teeth in patients with Oral and Oropharyngeal cancer treated with radiotherapy – 1 year follow up. Journal of Endodontics. 2018.
Cardiac dose reduction with Deep-Inspiratory Breath Hold technique of radiotherapy for left sided breast cancer. Journal of Medical Physics. 2017.
Case report “Role of 68Ga-Prostate-Specific Membrane Antigen PET/CT in Disease Assessment in Glioblastoma Within 48 Hours of Surgery.” Clinical Nuclear Medicine. 2020.
Prospective study of neoadjuvant chemoradiotherapy using intensity-modulated radiotherapy and 5 fluorouracil for locally advanced rectal cancer – toxicities and response assessment. Cancer Management and Research. 2018.
Rising incidence of rectal carcinoma in the young – Is it a concern? An Indian perspective. Cancer Prevention & Current Research. 2017.
Male Breast Cancer: An 8-years’ experience in a single tertiary oncology centre in India. International Journal of Medical Pediatrics and Oncology. 2016.
Rare presentation of Adenoid cystic carcinoma presenting as retro-orbital mass: a case report. Ophthalmol Case Rep. 2018.
Long-term outcomes and toxicity with re-irradiation for recurrent/second primary head and neck cancer. Journal of Carcinogenesis. 2016.
IMRT in carcinoma cervix – maximizing the gain and nipping the side effects – RGCI experience. Journal of Carcinogenesis. 2016.
Simultaneous Integrated Boost to treat locally advanced squamous cell carcinoma of head and neck – A strike off between acute toxicities and early response? What do we choose? Journal of Carcinogenesis. 2016.
Tumour Volume – Strong predictors of early treatment response in locally advanced head and neck cancers treated with definitive chemo radiation. Journal of Carcinogenesis. 2016.
The impact of tumour regression in locally advanced carcinoma cervix during external beam radiotherapy and the need for adaptive planning. Journal of Carcinogenesis. 2016.
Image guided interstitial brachytherapy for locally advanced disease after external beam radiotherapy in a case of carcinoma cervix – our institutional experience. Journal of Carcinogenesis. 2016.
Comparison of the outcomes between locally advanced cervical adenocarcinoma and squamous cell carcinoma patients treated with definitive chemoradiation. Journal of Carcinogenesis. 2016.
Correlation of MRI derived parameters and SUV uptake obtained from FDG- PET-CT with human papillomavirus status in oropharyngeal squamous cell carcinomas. Annals of Oncology. 2019.
Challenges seen with peri-neural invasion in head and neck cancer – A review article. Oral Oncology Reports 2023.
Survival Outcomes in Different Sino-nasal Malignancies: An Institutional Review. The Journal of Current Oncology 2023.
Treatment Delay during Radiotherapy of Cancer Patients due to COVID-19 Pandemic. Asian Pac J Cancer Prev. 2022.
Myxofibrosarcoma of Head and Neck Region – A Rare Case Report. Indian J Otolaryngol Head Neck Surg. 2023.
Role of neoadjuvant therapy in resectable pancreatic carcinoma: a review article – Annals of Pancreatic Cancer 2024.
Incorporation of tumour volume data in predicting early outcome in locally advanced head and neck cancer treated with definitive chemoradiation.
SMART boost technique to treat locally advanced squamous cell carcinoma of head and neck how smart is it? A feasibility study.
Does local control have an impact on outcome in patients treated with re-irradiation in head and neck cancer? An institutional experience.
Case report of vaginal melanoma. Journal of Carcinogenesis. 2016.
Survival outcomes comparison between simultaneous integrated boost IMRT and sequential IMRT in head and neck cancers. ESTRO Spain 2021.
Inter-Correlations Between Various High-Risk Pathological Factors in Resected Buccal Mucosal Squamous Cell Carcinoma. ASTRO Chicago 2021.
Tumour volume as prognostic factor for recurrent head and neck cancers treated with re-irradiation. ESTRO Spain 2021.
Would full-dose radiotherapy benefit patients with synchronous oligometastatic head and neck squamous cell carcinoma? ASTRO Chicago 2021.
Comparison between two-dose levels versus three-dose levels IMRT in head and neck cancers. ESTRO Spain 2021.
Impact of anterior commissure involvement in early glottic cancer treated with radical IMRT. ESTRO Spain 2021.
Dosimetric impact of tumour regression in carcinoma cervix treated with radical IMRT. ESTRO Spain 2021.
Impact of human papilloma virus on treatment outcomes in oropharyngeal cancer in India. ESTRO Spain 2021.
Pre-treatment hemoglobin as a surrogate marker for survival in head and neck squamous cell carcinoma. ESTRO Spain 2021.
Simultaneous integrated boost IMRT versus sequential IMRT in head and neck cancers. ESTRO Spain 2021.
Comparison of therapy outcomes between 2-dimensional radiotherapy and IMRT for early glottic cancer. ESTRO Spain 2021.
Wide histological spectrum of sinonasal malignancies and survival outcomes – an institutional review. ESTRO Spain 2021.
Use of definitive locoregional radiotherapy for consolidation in de-novo metastatic head and neck cancer responding to systemic therapy. ESTRO Spain 2021.
Impact of IGRT on cervical cancer: tumour regression, replanning, and dosimetric changes. ESTRO 2024.
Inter-correlations of pathological factors in hard palate cancer: insights from surgical specimens. ESTRO 2024.
Prognostic impact of posterior commissure involvement in early glottic cancer. ESTRO 2024.
Set-up errors and determination of planning target volume margin for IGRT for head and neck cancers. ESTRO 2024.
Lymphovascular invasion as prognostic factor in locally advanced oral tongue cancer. ESTRO 2024.
Inter-correlations between pathological prognostic features in resected buccoalveolar complex cancer. ESTRO 2024.
Three dimensional tumour volume predicts early response in recurrent oropharyngeal cancer. ESTRO 2024.
Relationship and concordance between CT, MRI and PET for target delineation of oropharyngeal cancer. ESTRO 2024.
Progressive decline in dental pulp sensitivity in oropharyngeal cancer treated with radiotherapy. ESTRO 2024.
Depth of invasion predicting survival with adjuvant radiotherapy in early tongue squamous carcinoma. ESTRO 2024.
Search for the ideal palliative fractionation regimen in HNC – A single institutional experience. ESTRO 2024.
Dosimetric comparison between HALCYON and CLINAC iX for locally advanced head and neck cancer. ESTRO 2024.
Comparison of disease outcomes between younger and older patients with carcinoma oral tongue. ESTRO 2024.
Post-Adjuvant Radiation failure pattern in bucco-alveolar complex by focal volume. ESTRO 2024.
Depth of Invasion as an Independent Predictor of Survival in Patients of Stage III Squamous Cell Carcinoma of the Oral Tongue. ESTRO 2024.
Impact of Radiation Treatment Delay Due to COVID-19 Pandemic. IJROBP 2022.
Role of Functional Imaging in evaluation of Radiation Colitis. ASTRO 2020.
Definitive radiotherapy in oligometastatic head and neck cancers responding to systemic therapy. Radiotherapy and Oncology. 2019.

Membership

Delhi Medical Council – DMC 53053
Association of Radiation Oncologists of India (AROI) – LM-1881 (Lifetime Member)
Indian College of Radiation Oncology (ICRO) – LM-1881 (Lifetime Member)
European Society for Medical Oncology (ESMO) Member – ESMO ID 466243
eLORA (e-Licensing of Radiation Applications) by Atomic Energy Regulatory Board (AERB) – RPR – 16-36085
Oncology Forum – Lifetime Member