Medical Oncologist
CION Cancer Clinics
En bloc resection and removing more than one organ | CION Cancer Clinics
An en bloc resection removes a tumour in one piece with whatever it has grown into, so the surgeon never cuts through cancer. When that includes a neighbouring organ, it is called a multivisceral or multi-organ resection. It is mainly considered for cancers that have grown locally but not spread far. This page explains when it is used, how it is planned and who it may not suit. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
MI
Medically reviewed by Dr. Mohammed ImaduddinConsultant Surgical Oncologist · MBBS, MS (General Surgery), MCh (Surgical Oncology) · last reviewed September 2026, next review due September 2027
17+specialists on panel
15,000+patients treated
35+centres across Telangana & AP
4.8★ / 800+Google rating
On this page
- What is an en bloc or multi-organ resection?
- Which cancers sometimes need more than one organ removed?
- How is an operation this size planned?
- What does the team weigh, and who may it not suit?
- What do families fear about removing several organs?
- Which terms might you read on the forms and reports?
- Common questions about en bloc and multi-organ surgery
The short answer
What is an en bloc or multi-organ resection?
An en bloc resection removes a tumour in one piece together with anything it is stuck to, without cutting into the tumour. When the tumour has grown into a neighbouring organ, that organ, or part of it, comes out in the same piece. Surgeons call this a multivisceral resection, meaning several organs removed together.
Why not just separate the tumour from the organ?
When a tumour is firmly stuck to something nearby, the surgeon often cannot tell during the operation whether it is only inflamed and sticky or has actually grown into it. Peeling the two apart risks cutting through cancer and leaving cells behind. Keeping everything in one piece avoids that.
What it tells you about the cancer
It usually means the tumour is locally advanced, which means it has grown beyond its own organ into the tissue around it. It does not by itself mean the cancer has spread to distant parts of the body. In fact, these operations are mainly considered when scans show no distant spread.
The phrase "en bloc" is French for "in one block". You may see it on the consent form and again on the pathology report.Where it is used
Which cancers sometimes need more than one organ removed?
These are common patterns, not a complete list. Each operation is planned around one person's scans.
Bowel cancer
A tumour in the colon or rectum may be stuck to the bladder, the womb, a loop of small bowel or the wall of the abdomen. The attached part is taken with the bowel.
Stomach cancer
A tumour may involve the spleen, the tail of the pancreas or part of the colon. These may be removed together with the stomach.
Sarcoma deep in the abdomen
Sarcomas at the back of the abdomen can grow large before they are found. The kidney, part of the colon or a muscle may be removed with the tumour.
Often planned with
- A specialist sarcoma team
- Scans of both kidneys first
Pelvic cancers
Advanced cancers of the rectum, cervix or bladder can involve other pelvic organs. The largest version removes several of them together and is called a pelvic exenteration.
Not sure whether this applies to you?
Ask an oncologistBefore the operation
How is an operation this size planned?
Detailed scans
CT, MRI and sometimes PET-CT show exactly what the tumour touches and whether it has spread elsewhere. Distant spread usually changes the plan away from surgery.
Treatment before surgery
Chemotherapy or radiotherapy is sometimes given first to shrink the tumour. This is called neoadjuvant treatment, and it can make the operation smaller or safer.
Tumour board review
Several specialists agree on which organs need to come out, and whether other surgical teams, such as urology or plastic surgery, need to join.
Getting fit for surgery
Heart, lung and kidney checks, nutrition support and gentle exercise help the body cope. This preparation is called prehabilitation.
Weighing it up
What does the team weigh, and who may it not suit?
A multi-organ operation is considered when removing everything in one piece offers a real chance of taking out all of the cancer. The team also weighs how long the operation will take, the recovery it demands and the lasting changes it brings.
The team will also ask what matters most to you. Some people accept a long recovery for the chance of removing the cancer fully. Others place more weight on staying at home and keeping their strength. Both views deserve to be heard before a plan is agreed.
Who it may not suit
It may not suit someone whose cancer has already spread to the liver, lungs or the lining of the abdomen, because removing the local tumour would not deal with that. It may not suit someone with serious heart or lung disease, or someone who is very weak from weight loss. Sometimes the tumour is wrapped around a major blood vessel that cannot safely be removed, and a complete operation is not possible.
Living without an organ, or part of one
Many people live well without a spleen, one kidney or a length of bowel. Some changes need lifelong care, such as vaccines after the spleen is removed, or a stoma, an opening on the abdomen that collects stool or urine. Ask your surgeon exactly which of these apply to your plan.
This page cannot tell you whether this operation is right for you. That decision is made with your own treating team.Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
!
After going home, these cannot wait
After a large abdominal operation, contact your surgical team the same day, or go to the nearest emergency department, if there is a fever or shivering, worsening pain in the abdomen, vomiting that will not settle, fluid or pus leaking from the wound, sudden breathlessness, or a painful swollen calf. Say what operation was done. Do not wait for the next clinic visit.
Commonly believed
What do families fear about removing several organs?
"If other organs are involved, it is too late for surgery."
Not always. A tumour that has grown into a neighbour but not spread further can sometimes still be removed completely. That is exactly the situation these operations are planned for.
"Nobody can live after losing so many parts."
The body adapts to losing many organs, or parts of them. Some changes are lasting and need support, but many people return to daily activities after recovery.
"The surgeon found more and just kept cutting."
Most multi-organ operations are planned in advance from the scans, and discussed with you beforehand. If a change of plan might be needed during surgery, your surgeon should explain that possibility on the consent form.
"Chemotherapy first means the surgeon has given up."
Treatment before surgery is often a deliberate step to shrink the tumour, so the operation can be smaller or more complete.
On your report
Which terms might you read on the forms and reports?
- En bloc
- Removed in one piece, without cutting into the tumour.
- Multivisceral resection
- An operation that removes more than one organ, or parts of several, at the same time.
- Locally advanced
- The cancer has grown into nearby tissue or organs but has not been found in distant parts of the body.
- Adherent or invading
- Adherent means stuck to a neighbouring organ. Invading means cancer has actually grown into it. Only the pathologist can confirm which.
- Exenteration
- Removal of most or all organs within one space, most often the pelvis.
Questions we are asked
Common questions about en bloc and multi-organ surgery
Does needing several organs removed mean the cancer is stage 4?
Not necessarily. Growing into a neighbouring organ makes a cancer locally advanced, but stage four usually means spread to distant parts of the body. These operations are mostly offered when scans show no distant spread. Ask your surgeon for the stage directly, since it is worked out differently for each cancer.
How long does such an operation take?
These are usually long operations, often most of a day, and sometimes involve more than one surgical team. The time depends on which organs are involved and what reconstruction is needed. Your surgeon can give a more specific idea once the plan is set.
Will my parent need the ICU afterwards?
Many people are watched in an intensive care or high dependency unit for the first day or more after a large operation. This is usually planned closer monitoring, not a sign that something has gone wrong. Ask the team beforehand so the family knows what to expect.
What if the surgeon finds the tumour cannot be removed?
Sometimes the operation shows spread that scans did not, or a tumour fixed to a structure that cannot be removed. The surgeon may then stop, take a biopsy, or do a smaller procedure to ease symptoms. Ask before surgery what would happen in that situation.
Will I need a stoma?
It depends on which organs are removed. Operations that involve the rectum or bladder more often need one, either for a short time or permanently. Your surgeon should tell you before the operation if a stoma is likely, and a stoma nurse can explain how daily life works with one.
Is chemotherapy needed after this operation?
Often, but it depends on the cancer and the pathology report. Because these cancers are locally advanced, many people are offered chemotherapy or radiotherapy before or after surgery. The plan is usually confirmed once the report on the removed tissue is ready.
Should we look for a centre that does many of these?
It is reasonable to ask how often a team performs your type of operation and what support is available, such as intensive care and other surgical specialists on site. These operations benefit from experience. Ask directly, and consider a second opinion if you are unsure.
Is a large operation like this covered by schemes?
Complex cancer operations are often covered when they are part of an approved plan. Aarogyasri, CGHS, ECHS, EHS and most cashless insurers are accepted. A longer stay and ICU care can change the total. Call the helpline with your card details to check your cover.
Meet the Specialists
17+ senior cancer specialists. One panel for your case.
Trained at AIIMS, Tata Memorial, and leading international centres. Combined 150+ years of experience. Every complex case is reviewed by 3+ of them — together.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
Surgical Oncologist
Surgical Oncologist
Dr. Vinay Mamidala
MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)
Surgical Oncologist
Radiation Oncologist
Radiation Oncologist
Radiation Oncologist
Hematologist
Surgical Oncologist
Dr. Vajja Sandeep Kumar
MBBS, MS (General Surgery), DrNB (Surgical Oncology), FALS Oncology
Surgical Oncologist
Want a specific doctor for your case? Mention them when booking.
Book Free ConsultationBook an appointment with our specialist
Share your name and number — we'll call you back within 30 minutes to schedule your consultation.
Sources
- National Cancer Institute — Surgery to Treat Cancer
- Cancer Research UK — Surgery for cancer
- National Cancer Institute — NCI Dictionary of Cancer Terms
- Macmillan Cancer Support — Cancer information and support
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Why Surgeons Take More Than the TumourThe reasoning behind removing extra tissueRadical Surgery After Chemotherapy Shrinks a TumourWhen treatment first makes the operation smallerICU and the First Days After SurgeryWhat the first days after a large operation look likeComplications and Red FlagsWarning signs to act on after you go home
Talk to us
Told the tumour involves other organs?
Share your scans and reports. A surgical oncologist will explain what the planned operation involves and what the alternatives are. One helpline serves every CION centre.