Retroperitoneal Tumour Treatment in Lucknow: careful planning for tumours deep in the abdomen
The retroperitoneum is the space at the back of the abdomen, around the kidneys and large blood vessels. Tumours there are uncommon and often large before they are noticed. Dr. Anshuman Singh reviews your scans, explains what the tumour is likely to be, and plans the safest way to treat it.
Medically reviewed by Dr. Anshuman Singh, M.S., M.Ch. Urology (Gold Medalist), Uro-Oncologist & Robotic Surgeon

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Understanding the condition
What a retroperitoneal tumour is
The retroperitoneum lies behind the abdominal cavity. It holds the kidneys, adrenal glands, pancreas, large vessels such as the aorta and vena cava, and lymph nodes. A tumour here can arise from fat or muscle tissue (sarcoma), from lymph nodes, from the adrenal gland, or may be spread from a testicular cancer.
Because there is room to grow, these tumours can reach a large size before they cause symptoms. They are treated according to what they are, so the diagnosis comes before the plan.
When to see a doctor
Signs that need a check
- A tumour or mass in the abdomen or back found on an ultrasound or CT scan.
- A swollen tummy, a feeling of fullness, or a lump you can feel.
- Lasting pain in the abdomen, back or flank, or swelling of the legs.
- Unexplained weight loss or tiredness.
- A history of testicular cancer with a new mass at the back of the abdomen.
Diagnosis
How the clinic works up the tumour
- Scan review
- CT or MRI show the size, the organs and vessels it touches, and whether there is spread. Good-quality images are important.
- Biopsy
- A needle biopsy, done under scan guidance, tells what kind of tumour it is before treatment is planned. Open biopsy is avoided because it can spread cells.
- Blood and hormone tests
- Tumour markers in suspected testicular spread, and hormone tests for adrenal tumours.
- Team discussion
- Complex tumours are best planned together with other specialists, such as a radiologist, pathologist, medical oncologist and, where needed, surgeons for the bowel or vessels.
Treatment
The treatments, and when each is used
- Surgery
- For most sarcomas, the main treatment is complete removal of the tumour with nearby tissue, sometimes including an adjacent organ such as the kidney, so that no tumour is left. This is major surgery that needs careful planning.
- Chemotherapy
- Used for tumours that respond to it, such as lymph node or germ cell tumours, and sometimes before surgery to shrink a tumour.
- Radiotherapy
- May be given before surgery for selected tumours, or to treat areas that cannot be removed.
- Lymph node surgery after testicular cancer
- Removal of remaining lumps at the back of the abdomen after chemotherapy for testicular cancer, with nerve-sparing technique where possible.
- Observation
- Some slow-growing or benign tumours can be watched with regular scans.
The operation
What to expect
- Before
- Tests, a check of your fitness, a talk about which organs may need to be removed with the tumour, and blood arrangements.
- During
- Surgery for a large retroperitoneal tumour is usually open, because of the size and the vessels involved. Minimally invasive or Robotic Surgery is used for selected small tumours.
- After
- Hospital stay of several days or more, with close monitoring, early walking and nutrition support. Recovery takes weeks to months.
- The report
- The removed tumour is examined, and the report sets the need for further treatment and how closely you are followed.
Follow-up
After treatment
Scans are repeated at regular intervals, often more frequently in the first two to three years, because some of these tumours can come back in the same area. The schedule depends on the type of tumour and the surgery.
Cancer Pathways
For structured, stage-wise information on what to expect, what to discuss with your treating Uro-Oncologist or Urologist, and the key decisions involved at each stage, please visit the Cancer Pathway section of this website.
Explore Cancer Pathways
Meet the doctor
Dr. Anshuman Singh
Uro-Oncologist and Robotic Surgeon, with a practice devoted entirely to cancers of the kidney, bladder, prostate, testis and penis.
Qualifications and training
- M.B.B.S.GSVM Medical College, Kanpur
- M.S. General SurgeryKing George's Medical University, Lucknow
- M.Ch. Urology (Gold Medalist)Kasturba Medical College, Manipal
- Fellowship in Uro-Oncology & Robotic SurgeryFellowship-certified by the Urological Society of India · Medanta, Gurugram
- Visiting Fellow, Robotic Uro-OncologyFundació Puigvert, Barcelona, Spain · EAU-sponsored training stay, Jan–Feb 2024
- Clinical Observer, Robotic Pelvic OncologyUniversity College London Hospitals, London, U.K.
- Evidence-based decisionsEach option is weighed against current guidelines and discussed openly, stage by stage.
- Robotic Surgery where it helpsMinimally invasive and robotic approaches for complex cancers that need precision and organ preservation.
- Quality of life mattersCancer control comes first, with equal attention to continence, sexual function and kidney health.
- Time to decideIndividual plans made through unhurried consultations, so you can choose with confidence.
Dr. Singh's personal website: urooncologist-lucknow.com
Common questions
Frequently asked questions
Can't find your question? Call or message the clinic, or see all questions.
The space at the back of the abdomen, behind the lining of the abdominal cavity, that holds the kidneys, adrenal glands, large blood vessels and lymph nodes.
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Patient reviews
What patients and families say
“I would like to express my heartfelt gratitude to Dr. Anshuman Singh for the exceptional care and expertise he provided during my prostate cancer treatment. From the very beginning, Dr. Singh demonstrated an outstanding level of professionalism and compassion.”
Vinod Kumar Bhat
Patient
“Last year on 25th May, 2024, I underwent robotic prostate surgery performed by Dr. Anshuman Singh and I couldn’t be more grateful for the exceptional care and expertise I received. From my very first consultation, Dr. Anshuma took the time to clearly explain my diagnosis, treatment options, and what to expect before, during, and after the surgery. ”
Malik Girish Anand
Patient
“Dr. Anshuman Singh is an extremely expert and caring doctor. Provided accurate diagnosis and consistent consultations throughout prostate treatment at Medanta. His constant availability and attention made the entire process reliable and comforting.”
Radhika Chemicals
Patient
Ready to talk about your diagnosis?
Clinic OPD Mon–Fri: 6–9 PM at Gomti Nagar. Teleconsultation by prior appointment.