30+ years of experience
500+ CRS+HIPEC procedures
International multidisciplinary committee
Reviewed by Dr. Juan José Torrent — Updated: April 30, 2026
High Complexity Surgery

Complex Oncological Resections

High-complexity oncological surgery for tumors affecting multiple organs or structures. Multidisciplinary specialized teams for extensive resections with curative intent.

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What are complex oncological resections?

Complex oncological resections are high technical difficulty surgical interventions performed to remove locally advanced tumors affecting multiple organs or anatomical structures. The goal is to achieve complete resection with tumor-free margins (R0).

These surgeries require highly specialized multidisciplinary teams, detailed preoperative planning, and advanced technical resources. Despite their complexity, they offer the only cure option for many patients with advanced tumors.

Operating theatre prepared for complex multivisceral oncological resections

Types of complex resections

We perform various types of complex oncological surgeries:

Multivisceral resections

En bloc removal of several organs affected by the tumor to ensure adequate oncological margins.

Vascular resections

Surgeries involving resection and reconstruction of major blood vessels infiltrated by tumor.

Resections with bone reconstruction

Removal of bony structures (sacrum, pelvis, chest wall) with specialized reconstruction techniques.

Cytoreductive surgery

Resection of multiple tumor implants in peritoneal carcinomatosis, often combined with HIPEC.

Characteristics of complex surgery

These interventions have special characteristics that differentiate them from standard oncological surgery:

Exhaustive planning

Detailed preoperative study with advanced imaging techniques, multidisciplinary committee discussion, and three-dimensional surgical planning.

Multidisciplinary teams

Participation of multiple surgical specialties in the same operative procedure: oncological surgery, vascular, urology, orthopedics, plastics.

Extended duration

Surgeries that can extend for many hours, requiring specialized anesthetic teams and enhanced recovery protocols.

Intensive postoperative care

Postoperative management in specialized units with continuous monitoring and trained support teams.

Indications for complex resections

This type of surgery is applied in various situations:

Locally advanced tumors

Primary tumors that have grown invading neighboring structures but without distant metastases.

Retroperitoneal sarcomas

Large tumors requiring resection of multiple abdominal organs to achieve clear margins.

Tumor recurrences

Local recurrences of previously treated tumors requiring extensive salvage surgery.

Peritoneal carcinomatosis

Peritoneal tumor spread requiring peritonectomies and multiple visceral resections.

Our experience in complex surgery

At Quenet-Torrent Institute we are a reference center in complex oncological surgery. Our team has extensive experience in multivisceral resections, salvage surgery, and procedures combining techniques from multiple specialties.

Each case is evaluated individually in our tumor board, where oncologists, radiologists, surgeons from different specialties, and other professionals design the optimal strategy for each patient.

Pathologies that may require complex resections

Various oncological pathologies can benefit from this type of surgery.

Sarcomas

Retroperitoneal and extremity sarcomas requiring extensive surgery.

More information

Peritoneal carcinomatosis

Complete cytoreductive surgery with multiple peritonectomies.

More information

Biliopancreatic tumors

Locally advanced pancreatic tumors with vascular involvement.

More information

Where do we perform complex oncological resections?

We operate in two private hospitals of reference in Spain. The same medical team treats you in Madrid and Barcelona, with the same surgical and oncological standards.

Centro Médico Teknon, Barcelona
Barcelona

Centro Médico Teknon

Internationally recognised private hospital in Barcelona where the team carries out its high-complexity surgical oncology activity.

Carrer de Vilana, 12 08022 Barcelona
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Memorial Publio Cordón Hospital, Madrid
Madrid

Memorial Publio Cordón Hospital

Private hospital in Pozuelo de Alarcón with a multidisciplinary team specialised in digestive surgical oncology and cutting-edge surgical technology.

Paseo de la Casa de Campo, 5 28223 Pozuelo de Alarcón, Madrid
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Patient testimonies and surgery explanations

Real testimonies from patients treated by our team in high-complexity surgical oncology.

Debra's case

66-year-old English woman with advanced ovarian cancer and peritoneal metastases. Treated with cytoreduction + HIPEC, she is now disease-free.

Read the full case

Rosario (Charo)'s case

73-year-old patient with advanced cancer treated with chemotherapy and high-complexity surgical oncology. Excellent survival and quality of life.

Read the full case

Laura's case

Rare abdominal tumor treated with complex cytoreductive surgery plus HIPEC and systemic chemotherapy. Disease-free after almost 2 years.

Read the full case

Santiago's case

Diagnosed with widespread peritoneal carcinomatosis and considered inoperable. After complete cytoreduction with HIPEC, today his is a story of hope and survival.

Read the full case

What our patients say

See on Google ★★★★★
L
Loreto Toscano
4 weeks ago
★★★★★

Wonderful surgical team, among the best out there. Dr. Torrent (expert in peritoneal carcinomatosis) is an exceptional surgeon and an even better person. His coordinator is super kind, fast and efficient. The human treatment is great and the results are too. This is of vital importance for cancer patients.

K
Kanijo Sánchez
5 months ago
★★★★★

In the public healthcare system they gave my father a maximum of one year to live. They only offered him chemo and no hope, said it was impossible, that nothing could be done. He had several tumors inside the peritoneal sac with metastases. A year and a half later he is clean, completely cured. His latest PET scan came back clean. We are very happy. Thanks to Dr. Torrent and his team. THANK YOU.

M
Manuel S.D.
A year ago
★★★★★

Excellent professionals, especially Dr. Torrent, attentive at all times to the patient (my wife), operated for peritoneal pseudomyxoma. They helped us with all our needs since we came from outside Barcelona. Thank you Elisabeth. We are very grateful to Quenet Torrent Institute, thank you for everything.

P
Pilar Garcés
2 years ago
★★★★★

I am a 63-year-old patient. They detected adrenal gland cancer and told me there was nothing to be done. I sought a second opinion and they told me about the Quenet Torrent team, specialists in complex operations. Dr. Torrent, from the first moment, told me they could operate. They operated and removed a large tumor mass. I spent a week in the ICU and a month on the ward. Every day he came morning and evening, no matter Saturday or Sunday. Never throw in the towel. I am happy to have found these professionals who gave me my life back. Thank you.

I
Imma Rondán
3 years ago
★★★★★

Many thanks for your attention. Dr. Torrent always attentive, involved and decisive. The reception staff very pleasant and always offering the best option. 100% RECOMMENDED. THANK YOU.

M
Mª Cristina Domínguez
5 years ago
★★★★★

Dr. Torrent helped me make the best decision at a difficult moment. I think he is a great professional and a person capable of accompanying you and putting himself in another's shoes. Thank you for everything.

F
Francisco García
6 years ago
★★★★★

I have peritoneal carcinomatosis. Sending my diagnosis to every center, practically all agreed on palliative chemo with little survival time since I had very aggressive cell types. Until we reached Dr. Quenet, Dr. Torrent and their team. I can only confirm what their CV announces: they are far ahead of the rest. They saved my life, at surgery the harmful cells everyone diagnosed (and used to refuse to operate) were not there. This intervention has become the best investment of my life.

M
Mara Reboredo
6 years ago
★★★★★

The best decision of my life was finding this excellent team of surgeons who saved my husband's life. At a prestigious international clinic in Madrid he was given up for lost with advanced peritoneal carcinomatosis from appendiceal cancer, and thanks to them, the best professionals in this field, he was operated on very successfully. A perfect recovery with no complications, because they were on top of his progress at all times. They have a great quality: from the start they were very honest and close. I can only be deeply grateful; we went to buy time and thanks to them my husband got his life back.

E
Elisenda Br.
7 years ago
★★★★★

Dr. Torrent is a brilliant surgeon and a very easy-going and polite doctor. When talking with him you can easily grasp his qualities as a professional and human being: perseverance, innate curiosity and passion for learning, humility, honesty and empathy. Having surgery is always an intense experience, anxieties arise and one feels very vulnerable. All of that being said, as his ex-patient I can assure that throughout the process his care and professionalism were absolutely outstanding. I felt safe, supported by him, knowing I was in good hands. I will be forever grateful. Moltes gràcies Dr. Torrent!

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