Map the disease
Confirm origin, biology, spread and treatment sequence.
05 · Areas of surgical care
Complex cancer surgery.
Precisely planned.
A visual overview of peritoneal, abdominal, hepatopancreatobiliary, endocrine and breast cancer operations—where disease biology, anatomy and reconstruction must be planned together.
Plan the resection
Define margins, organ interfaces and what can be preserved.
Design the reconstruction
Protect function, nutrition and the pathway through recovery.
Start with strategy
Complexity is not
a single operation.
Two patients with the same cancer may need very different pathways. The decisive questions are whether disease can be removed safely, whether other therapy should come first, and what reconstruction will preserve meaningful function.
THE COMPLEXITY MAPOne disease plan · several anatomical territories
Define the disease
Pathology, molecular context where relevant, and high-quality staging establish what is being treated.
Map the interfaces
Imaging asks where the tumour touches vessels, ducts, organs, abdominal wall or pelvic structures.
Plan what remains
A safe operation protects future liver, bowel length, nutrition, continence and reconstructive options.
Sequence the treatment
Systemic therapy, radiotherapy and surgery may need to happen in a deliberate order.
Cancer pathways
Different territories.
One planning discipline.
The operation is built around the tumour’s site, spread and biological behaviour—not around a preferred device or incision.
Peritoneum
Peritoneal surface malignancy
Disease involving the abdominal lining may arise from the appendix, colon, ovary, stomach or another primary. Distribution, biology and the possibility of complete cytoreduction shape the plan.
Appendiceal · colorectal · ovarian · primary peritonealRetroperitoneum
Retroperitoneal sarcoma
These uncommon tumours grow behind the peritoneal cavity, close to major vessels, kidneys, bowel and other organs. Surgery is planned around tumour subtype, margins and preservation of uninvolved structures.
Specialist sarcoma review · en-bloc planningHPB
Liver, bile duct & pancreatic cancer
Resectability depends on the relationship to major vessels and ducts, disease spread, liver reserve and whether a safe reconstruction can restore digestive and biliary continuity.
Hepatectomy · bile-duct resection · pancreatic surgeryUpper gastrointestinal
Gastric & complex GI cancer
Operations can range from organ-preserving resection to radical gastrectomy or multivisceral surgery, with lymph-node clearance and reconstruction tailored to site and stage.
Gastrectomy · bypass · nutritional accessEndocrine
Complex thyroid & parathyroid malignancy
Locally advanced, recurrent or anatomically difficult disease may require careful planning around the recurrent laryngeal nerves, airway, oesophagus and neck lymph nodes.
Nerve-aware dissection · compartment-based nodal surgeryBreast & axilla
Breast oncology & oncoplastic care
Cancer clearance is planned together with breast shape, skin or nipple preservation when oncologically appropriate, reconstruction options and the least disruptive safe axillary strategy.
Oncoplastic conservation · skin/nipple-sparing optionsPelvis
Locally advanced pelvic cancer
When disease crosses usual organ boundaries, colorectal, urologic, gynaecologic and reconstructive teams may plan a single en-bloc operation rather than separating an attached tumour.
Multivisceral resection · selected pelvic exenterationMultiple compartments
Multi-organ cancer involvement
Complexity comes from what must be removed, what can be preserved and how function will be restored. The operation is mapped as a sequence—not chosen from a procedure list.
Resection · reconstruction · recovery strategyThe procedure atlas
Resection is only
half the architecture.
Major cancer surgery may remove disease, rebuild continuity, bypass an obstruction, create nutritional access or combine surgery with regional therapy. These cards describe purpose—not personal eligibility.
Resect
Remove tumour with an oncologically appropriate margin and specimen plan.
Reconstruct
Reconnect bowel, bile, pancreas, urinary tract or soft tissue when required.
Restore flow
Create a safe route for food, bile, urine or nutrition.
Treat a region
Combine surgery with selected regional treatment such as HIPEC.
01Resect + reconstruct
Whipple procedure
PancreatoduodenectomyRemoves the pancreatic head and duodenum with adjacent biliary anatomy, then reconstructs pancreatic, bile and food pathways. Considered for selected resectable pancreatic-head, periampullary, distal bile-duct or duodenal tumours.
02Resection
Radical gastrectomy
Partial or total gastrectomyRemoves the cancer-bearing stomach segment—or the whole stomach—with an appropriate lymph-node dissection. Extent depends on tumour site, biology, stage and the ability to obtain clear margins.
03Restore passage
Gastrojejunostomy
Stomach-to-small-bowel bypassCreates a new passage from stomach to jejunum. It may be part of reconstruction or used to bypass selected gastric or duodenal obstruction when direct removal is unsuitable.
04Resection
Hepatectomy
Anatomical or non-anatomical liver resectionRemoves the tumour-bearing part of the liver while preserving an adequate future liver remnant with reliable inflow, outflow and bile drainage.
05Reconstruct
Roux-en-Y hepaticojejunostomy
Biliary-enteric reconstructionConnects the hepatic duct system to an isolated limb of small bowel after selected bile-duct resections, restoring a route for bile to reach the intestine.
06Nutrition
Feeding jejunostomy
Direct small-bowel feeding accessProvides a temporary or longer-term route for enteral nutrition when oral intake may be unsafe or inadequate around a major upper-abdominal cancer operation.
07Peritoneal
Cytoreductive surgery
CRSSystematically removes visible peritoneal tumour in selected patients. Suitability depends on primary cancer, disease distribution, tumour biology, fitness and whether meaningful cytoreduction is achievable.
08Regional therapy
HIPEC
Heated intraperitoneal chemotherapyCirculates heated chemotherapy inside the abdomen during selected cytoreductive operations. It is not a substitute for resection and its role differs by cancer type and treatment setting.
09Specialist / evolving
PIPAC
Pressurised intraperitoneal aerosol chemotherapyDelivers chemotherapy as a pressurised aerosol during laparoscopy in highly selected peritoneal-disease pathways. Availability and evidence vary; it is often used within specialist protocols or clinical evaluation.
10Multivisceral
Pelvic exenteration
En-bloc pelvic resectionA major operation for selected locally advanced or recurrent pelvic cancers when complete removal appears possible. Urinary, bowel, pelvic-floor and soft-tissue reconstruction may all need advance planning.
11Breast conservation
Oncoplastic surgery
Cancer excision + reshapingCombines wide local cancer excision with planned reshaping or volume replacement. It aims to preserve breast form without compromising margin assessment or adjuvant treatment planning.
12Breast + axilla
Skin/nipple-sparing & axillary surgery
Selected mastectomy and nodal strategiesSkin or nipple preservation is considered only when tumour position and biology allow. Axillary management may range from sentinel-node staging to targeted or more extensive clearance.
Important
Being technically possible does not automatically make an operation beneficial. Cancer clearance, treatment alternatives, operative burden, quality of life and the patient’s goals must be considered together.
Peritoneal surface malignancy
CRS, HIPEC and PIPAC
are different tools.
Cytoreductive surgery removes visible disease. HIPEC delivers heated chemotherapy during selected operations. PIPAC delivers aerosolised chemotherapy laparoscopically in specialist pathways. None is appropriate for every peritoneal cancer.
Distribution mattersLocation, volume, biology and resectability—not one dot or one number—inform selection.
Cross-sectional imaging, pathology and selective laparoscopy where it adds value.
Pattern and disease burden, often including a Peritoneal Cancer Index assessment.
Tumour biology, fitness, response to treatment and chance of meaningful cytoreduction.
Systemic therapy, CRS ± HIPEC, specialist PIPAC protocols, trials or symptom-focused care.
CRS
Operative mapping and organ-by-organ cytoreduction aim to leave no visible disease—or the smallest achievable residual—in appropriately selected patients.
HIPEC
After selected cytoreductions, a heated chemotherapy solution is circulated through the abdomen for a defined time under a centre-specific protocol.
PIPAC
Pressurised aerosol chemotherapy is delivered through laparoscopic access. Its place remains tumour- and protocol-specific and should be discussed at a specialist centre.
Breast, axilla & endocrine oncology
Clearance and function
planned in the same room.
Complexity is not limited to the abdomen. Cancer control, nerve preservation, contour, lymph-node strategy and reconstruction can be inseparable parts of one plan.
BREAST CONSERVATION
Oncoplastic techniques
- Plan margin and reshaping together
- Volume displacement or replacement
- Coordinate with radiotherapy requirements
MASTECTOMY
Skin- or nipple-sparing options
- Only when cancer position and extent allow
- Immediate or staged reconstruction planning
- Pathology remains the priority
AXILLA
Complex nodal management
- Sentinel and targeted strategies where appropriate
- Clearance when oncologically required
- Plan to reduce shoulder and lymphoedema burden
THYROID · PARATHYROID
High-risk neck anatomy
- Airway, voice nerve and calcium-function planning
- Compartment-based nodal assessment
- Recurrent or invasive disease strategy
Multidisciplinary planning
One operation.
Many decisions upstream.
A complex operation is safer and more coherent when pathology, imaging, systemic treatment, resectability, reconstruction, nutrition and recovery are discussed before the first incision.
Pathology, origin and relevant tumour biology.
Map local interfaces and distant disease.
Decide whether therapy comes before or after surgery.
Plan resection, reconstruction and contingencies.
Fitness, nutrition, anaesthesia and prehabilitation.
Enhanced recovery, pathology and surveillance.
The cancer MDT
The plan should survive several expert questions before the patient faces one operation.
- Can complete or meaningful resection be achieved?
- What function is at risk—and how will it be restored?
- Would systemic therapy or radiotherapy improve the sequence?
- What is the realistic burden, benefit and alternative?
Common questions
Clarity before
a major decision.
These answers provide orientation only. A recommendation requires review of the individual diagnosis, imaging, previous treatment and overall health.
01What makes a cancer operation ‘complex’?
Complexity may come from tumour biology, proximity to major vessels or ducts, previous treatment, disease crossing organ boundaries, the need for reconstruction, or the physiological demands of a long operation. Size alone does not define complexity.
02Does an operation name tell me whether it is right for me?
No. A Whipple procedure, HIPEC, hepatectomy or pelvic exenteration is considered only after the diagnosis, stage, anatomy, treatment sequence, fitness and realistic goals have been reviewed. The same diagnosis can lead to different plans in different patients.
03Is HIPEC used for every cancer that has reached the peritoneum?
No. HIPEC is used in selected settings and is usually considered together with cytoreductive surgery. Primary cancer, disease burden, resectability, previous therapy, fitness and centre experience all matter; evidence is not identical across tumour types.
04Is PIPAC the same as HIPEC?
No. HIPEC circulates heated chemotherapy in the abdomen during an operation, commonly after cytoreduction. PIPAC uses laparoscopic access to deliver pressurised aerosol chemotherapy. PIPAC remains a specialist, evolving treatment rather than a universal standard.
05Why might several surgeons be involved?
A single operation may involve tumour removal, vascular or biliary work, bowel or urinary reconstruction, breast reconstruction, or pelvic-floor closure. A coordinated team lets each stage be planned by the appropriate expertise.
06Can complex cancer surgery be minimally invasive or robotic?
Sometimes. Laparoscopic or robotic access can be appropriate for selected stages and procedures, while open surgery remains essential for many large, vascular, multivisceral or peritoneal operations. Access is chosen around cancer clearance and safety—not scar size alone.
Medical references
Evidence-led patient education.
This guide is an overview, not a treatment recommendation. Disease-specific decisions should be made in a specialist multidisciplinary setting.
- NCI pancreatic cancer treatmentWhipple and pancreatic resection ↗
- NCI ovarian/peritoneal cancer PDQCytoreduction and HIPEC context ↗
- NCI primary liver cancer PDQResection and liver reserve ↗
- NCI bile-duct cancer PDQResectability and major HPB surgery ↗
- NCI soft-tissue sarcoma PDQRetroperitoneal resection principles ↗
- NCI mastectomy guideSkin- and nipple-sparing selection ↗
- PIPAC international consensusSpecialist treatment protocols ↗
A complex cancer consultation
Bring the pathology, imaging and questions. Build one coherent plan.
A second opinion can clarify operability, treatment sequence, surgical extent, reconstruction and alternatives—even when surgery is not the next step.