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Dr. (Brig) S. Viswanath

Dr. (Brig) S. Viswanath

Visiting Consultant 
37 Years of Experience
Medical Oncologist
Rela Hospital, Chennai
MBBS, MD, DM
Reg. No.:153389, Tamil Nadu Medical Council
English, Hindi, Tamil
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About Dr. (Brig) S. Viswanath

  • Dr. (Brig) S. Viswanath is a well-known Medical Oncologist with over 36 years of experience.
  • Dr. Viswanath brings extensive expertise to the field of medical oncology, specializing in gastrointestinal cancers, colorectal cancer, liquid tumors, and head and neck cancers.
  • His clinical practice revolves around providing advanced treatments such as chemotherapy, immunotherapy, and targeted therapy aimed at delivering optimal outcomes for his patients.
  • Dr. Viswanath's educational qualifications include an MBBS from Karnataka Medical College, Hubli, obtained in 1988, followed by an MD in General Medicine from Command Hospital, Airforce, Bangalore in 2000.
  • He earned a DM in Medical Oncology from the Cancer Institute (WIA), Chennai, in 2006.
  • He has enriched his career with international experience at renowned hospitals, contributing significantly to the global oncology community.
  • Dr. Viswanath has received several prestigious awards and medals, including the Shigikara Award from AFLA (Asian Federation of Laryngectomees Association) in 2014.
  • His academic contributions are notable, with publications in peer-reviewed journals like the Indian Journal of Rheumatology and the Journal of Cancer Metasta Treat.
  • He is a reputable member of several organizations, including the Royal College of Surgeons Edinburgh, the Indian Surgical Oncology Society, and the City Surgical Oncologist Group.

Awards of Dr. (Brig) S. Viswanath

  • Shigikara Award, Asian Federation of Laryngectomees Association (AFLA), 2014

Paper Published by Dr. (Brig) S. Viswanath

  • Singal V K, Viswanath S, Chengappa ANM. Two cases of refractory rheumatoid arthritis treated with Rituximab; Indian Journal of Rheumatology, Vol2, Issue 3,S27:sept 2007.
  • Sundaram V,Sanyal N. Clinicopathological profile of bronchogenic carcinoma in a tertiary care hospital in eastern part of India. Clinical Cancer Investig J 2014;3:220-4.
  • Darling HS, Viswanath S, Rajeev V. T- lymphoblastic lymphoma in an undiagnosed rheumatoid arthritis- A rare occurrence. Indian Journal of Rheumatology,Vol. 10, Issue 1,p48-50, 2015.
  • Viswanath S, Pathak A, Kapoor A, Rathore A, Kapur BN. Changing paradigm in treatment of lung cancer. J Cancer Metasta Treat 2016;2:214-9.
  • Sundaram V. Sinus histiocytosis with massive lymphadenopathy (Rosai-Dorfman’s disease) with systemic involvement. Afr J Med Health Sci 2016;15:62-4.
  • Dubey AP, Viswanath S. A case of metastatic insulinoma: Management and review of literature. OGH Reports, 2016; 5(2):79-81.
  • Viswanath S, Pathak A. Management of HER2-positive breast cancer: A review. J NTR Univ Health Sci 2016;5:87-92.
  • Pathak A, Viswanath S, Rathore A, Dubey AP. Paraneoplastic limbic encephalitis forgotten etiology of altered sensorium. Int J Adv Med 2016;3:771-3.
  • Dubey AP*, Viswanath S, Suhag V, Pathak A, Rathore A, Kapoor A. Oral voriconazole causing severe hypokalemia, acute quadriplegia and prolonged qt interval: a rare case report, wjpmr, 2016, 2(2).
  • Kapoor A, Viswanath S, Ranjan S, Kapur BN. A Clinico demographic Study of Receptor status in Carcinoma Breast. J Carcinog 2016, 15:2(7 April 2016) (ACOS Abstracts):S162.
  • Rajeev V, Kapur A, Viswanath S, Kapur BN. Primary CNS Lymphoma in Immunocompetent Patient – Case Series. J Carcinog 2016, 15:2(7 April 2016) (ACOS Abstracts):S215.
  • Purkayasta A, Sharma N, Viswanath S, Sunitha B. Adenoid Cystic Carcinoma of Lung: A oncological rarity treated with definitive chemoradiation.Int JCancer Ther Oncol.2016; 4(3):4315
  • Purkayastha A, Pathak A, Sharma N, Viswanath S, Dutta V. Primitive neuroectodermal tumor of lungs in adults: a rare series of three cases treated with upfront chemo-radiation. Transl Lung Cancer Res 2016;5(3):350-355.
  • Pathi N, Viswanath S, Pathak A, Rathore A, Prukayasta A. Receptor tyrosine kinase signalling pathways: a review. Int J Adv Med.2016 Oct 26;3(4):783-9.
  • Viswanath S, Bhardwaj R, kapoor A. Clinicopathological significance of epidermal growth factor receptor and vascular endothelial growth factor expression in biliary tract malignancies. J NTR Univ Health Sci 2017;6:82-5.
  • Dubey AP, Vishwanath S, Nikhil P, Rathore A, Pathak A. Microsatellite instability in stage II colorectal cancer: An Indian perspective. Indian J Cancer 2016;53:513-7.
  • Dubey AP,Singh R, Pathak A, Viswanath S, Rathore A, Pathi N. Clinical profile, prognostication and treatment outcomes in non Hodgkin’s lymphoma. Int J Adv Med 2017;4:1184-8.
  • Singh R, Viswanath S, Maleskar D. Clinical profile and outcomes of granulocytic sarcoma among myeloid malignancies treated in a tertiary care center. Clin Cancer Investig J 2017;6:56-61.
  • Carcinoma of the Unknown primary- Knowing the unknown facts. Pathak A, Gupta A, Rathore A, Vishwanath S. World J Pharm Sci2018; 6(1): 40-46.
  • Dubey A P, Vishwanath S, Nikhil P, Rathore A, Pathak A, Kumar R. Microsatellite instability in stage II and III colorectal cancer: Patterns and profile. Indian J Med Paediatr Oncol [serial online] 2018 [cited 2018 Jan 29];39:36-41.
  • Dubey A P, Pathi N, Rathore A, Viswanath S, Pathak A, Sud R, Rai S K. Clinicopathological profile of anaplastic lymphoma kinase-positive non small cell lung cancer: An Indian perspective. Indian J Med Paediatr Oncol [serial online] 2018 [cited 2018 Jan 29];39:32-5.
  • Dubey AP, Rawat K, Pathi N, Viswanath S, Rathore A, Kapoor R, et al. Carcinoma of gall bladder: Demographic and clinicopathological profile in Indian patients. Oncol J India 2018;2:3-6.
  • Purkayasta A, Sharma N, Viswanath S, Sunitha B. Adenoid Cystic Carcinoma of Lung: A oncological rarity treated with definitive chemoradiation..Int J Cancer Ther Oncol.2016; 4(3):4315
  • Incidence of K-RAS mutation in metastatic colorectal carcinoma and further to find any associated correlation between K-RAS mutation and various demographic and clinical factors. A Hospital based study(#652) Altaf Ali 1 , A K Dhar 2 , Bhupender Kapur 2 , Dharmesh Soneji 2 , Amul Kapoor 2 , S Viswanath 2 E Poster 2014 WCC
  • Sharma N, Purkayastha A, Vishwanath S, Jaiswal P. To compare and determine the diagnostic accuracy of [18F]- fluorodeoxyglucose positron emission tomography scan in predicting pathological response in operated carcinoma esophagus patients after initial neoadjuvant chemoradiation and neoadjuvant chemotherapy. World J Nucl Med2018;17:79-85.
  • Dubey A P, Pathi N, Viswanath S, Rathore A, Pathak A, Sud R. New insights into anaplastic lymphoma kinase-positive non small cell lung cancer. Indian J Cancer 2017;54:203-8
  • Rathore A, Ranjan S, Vishwanath S, Pathak A, Dubey A P, Nikhil P. BRCA 1 and 2 mutations in carcinoma breast: An Indian study. Clin Cancer Investig J 2018;7:97-103
  • Darling HS, Viswanath S, Singh Randeep.Medication Related osteonecrosis of Jaw- A medical oncologist’s perspective.International Dental Journal of Student’s Research 2018;6(1):1-6
  • A clinic- epidemiological, pathological and molecular study of lung cancer in Northwestern India. Darling HS, Viswanath S, Singh R, Ranjan S, Pathi N, Rathore A, Pathak A, Sud R. DOI: 10.4103/jcrt.JCRT_473_17
  • Lohia, N., Prashar, M., Singh, S,Bhatnagar S, Viswanath S, Anand S, et al.Epidemiological and survival Trends in patients of Cancer of Uterine Cervix Treated with Definitive Concurrent Chemoradiotherapy: Obsevations from a North Indian Hospital Based Cancer Registry. Indian J Gynecol Oncology (2019) 17: 44
  • Lohia N, Bhatnagar S, Singh S Prasher M, Subramaniam A, Viswanath S, et al. Survival trends in oral cavity cancer patients treated with surgery and adjuvant radiotherapy in a tertiary centre of Northern India. Where do we stand compared to the developed world? SRM J Res Dent Sci 2019,10 26-31.
  • Prasher M, Soneji D, Viswanath S, Singh S. Cardiotoxicity with sequential use of Antharacycline and Transtuzumab in carcinoma breast patients in a North Indian tertiary care centre. J NTR Univ Health Sci 2019, 8: 83-8.
  • Bisht N, Bhatnagar S, Viswanath S,Singh S, Lohia N. A comparative study of two protocols of concurrent chemotherapy with external beam radiotherapy in treatment of locally advanced cervical cancer: Cisplatin versus cisplatin plus capecitabine combination. Indian Journal of Gynecologic Oncology (2021)19:18

Experience of Dr. (Brig) S. Viswanath

  • Commandant, Military Hospital, Chennai, 2021
  • Consultant, Medicine & Medical Oncology, Command Hospital (CC), Lucknow, 2020
  • Professor, Senior Advisor, Medicine & Medical Oncology, Command Hospital (CC), Lucknow, 2020
  • Professor, Senior Advisor, Medicine & Medical Oncology, Army Hospital (R&R), 2018
  • Associate Professor, Senior Advisor, Medicine & Medical Oncology, Army Hospital (R&R), 2016
  • Associate Professor, Senior Advisor, Medicine & Medical Oncology, Command Hospital (EC), 2012
  • Assistant Professor, Classified Specialist in Medicine and Medical Oncology, Command Hospital (EC), 2011
  • Assistant Professor, Classified Specialist in Medicine and Medical Oncology, Command Hospital (WC), 2009

Education of Dr. (Brig) S. Viswanath

  • MBBS, Karnataka Medical College, Hubli, 1988
  • MD in General Medicine, Command Hospital Air Force, Bangalore, 2000
  • DM in Medical Oncology, Cancer Institute (WIA), Chennai, 2006

Membership of Dr. (Brig) S. Viswanath

  • Royal College of Surgeons Edinburgh
  • Association of Surgeons of India
  • Indian Surgical Oncology Society
  • City Surgical Oncologist Group

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