30+ years of experience
3,000+ CRS+HIPEC procedures
International multidisciplinary committee
Reviewed by Dr. Patricia Tejedor · Updated: April 30, 2026
Specialty

Colon cancer: specialized surgery

At Quenet-Torrent Institute we offer specialized surgical treatment of colon cancer with minimally invasive techniques and robotic surgery. Our multidisciplinary team decides each patient's strategy with curative intent.

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Clinical summary

Colon cancer is treated with oncological resection (right or left hemicolectomy) and complete lymphadenectomy, ideally by minimally invasive or robotic surgery. At Quenet-Torrent Institute (Barcelona · Madrid), Dr. Patricia Tejedor leads the colorectal approach together with Dr. Quenet and Dr. Carlos Rodríguez-Otero Luppi, with HIPEC added in selected cases with carcinomatosis.

Explanatory video

Surgical treatment of colon cancer

Our specialists explain the surgical techniques we use in colon cancer, including robotic and minimally invasive surgery.

  • Laparoscopic and robotic segmental colectomy
  • Complete oncological lymphadenectomy
  • ERAS enhanced recovery protocols

What is colon cancer?

Colon cancer is a malignant tumor that arises in the inner lining of the large intestine (colon). It is one of the most common cancers worldwide, but also one of the most curable when detected at early stages.

The most common histological type is adenocarcinoma (more than 95% of cases), which develops from adenomatous polyps. Other less common types include neuroendocrine tumors, lymphomas and gastrointestinal stromal tumors (GIST).

The main risk factors are: age over 50, a family history of colorectal cancer, hereditary syndromes (Lynch, familial adenomatous polyposis), inflammatory bowel disease (ulcerative colitis, Crohn's), a diet high in red and processed meat, obesity, physical inactivity and smoking.

Warning symptoms include changes in bowel habits (persistent diarrhea or constipation), blood in the stools, abdominal pain, unexplained weight loss, iron-deficiency anemia and tiredness. Screening with colonoscopy from age 50 allows it to be detected at early stages.

Symptoms of colon cancer

Colon cancer is often silent in its early stages, which is why population screening carries so much weight. When signs appear, the most common are persistent changes in bowel habits (diarrhea or constipation that does not go away), blood in the stools, abdominal pain or discomfort, a feeling of incomplete emptying and unexplained weight loss.

Iron-deficiency anemia and tiredness with no apparent cause can also be warning signs, especially in people over 50. With any of these symptoms, or with a family history of colorectal cancer, it is advisable to see a specialist without delay: early detection substantially improves the chances of curative treatment and the long-term prognosis.

Causes and risk factors of colon cancer

Colon cancer usually arises from adenomatous polyps that, over time, undergo malignant transformation. Age is the most relevant risk factor, with a significant rise in incidence from 50. A family history of colorectal cancer and hereditary syndromes such as Lynch syndrome or familial adenomatous polyposis considerably increase individual risk.

Inflammatory bowel disease (ulcerative colitis and Crohn's disease), a diet high in red and processed meat and low in fiber, obesity, physical inactivity, tobacco and heavy alcohol consumption are modifiable risk factors that can be acted on. Screening with the fecal occult blood test and colonoscopy in risk groups makes it possible to detect premalignant lesions and tumors at early stages, when treatment is more effective.

Why ask for a second opinion on colon cancer?

Although colon cancer treatment follows standardized protocols, there are situations where a second surgical opinion can change the prognosis.

Doubts about resectability

Assess whether the primary tumor or the metastases can be resected with curative intent.

Liver metastases

Assess whether synchronous or metachronous liver metastases can be resected.

Peritoneal carcinomatosis

Assess candidacy for cytoreduction + HIPEC in selected cases with peritoneal spread.

Minimally invasive surgery

Confirm whether a laparoscopic or robotic approach is possible rather than open surgery.

Neoadjuvant treatment

Assess whether prior chemotherapy can improve the results of surgery.

At Quenet-Torrent Institute we review the complete case and propose a treatment strategy.

How is colon cancer treated surgically?

Surgery is the curative treatment for colon cancer. The aim is complete resection of the tumor with clear margins and adequate oncological lymphadenectomy.

Segmental colectomy

Resection of the affected segment of the colon (right, transverse, left, sigmoid) with its mesentery and corresponding lymph nodes.

Laparoscopic/robotic surgery

The approach of choice when technically possible. Less pain, faster recovery and the same oncological results.

Resection of metastases

In patients with resectable liver or lung metastases, surgery can offer long survival and even cure.

Cytoreduction + HIPEC

In selected peritoneal carcinomatosis of colorectal origin, this treatment can offer long-term control of the disease.

Treatment is designed with a multidisciplinary approach, including adjuvant or neoadjuvant chemotherapy according to the stage and the molecular features of the tumor.

Technology in colon cancer

At Quenet-Torrent Institute we use these techniques to plan and perform surgery more safely.

Da Vinci® robotic surgery

Useful for precise resections in difficult anatomy.

Complete oncological lymphadenectomy

(D2 or higher) in all surgical procedures.

Intraoperative fluorescence (ICG)

To assess blood supply to the bowel.

Personalized surgical planning

With rectal MRI, CT and PET-CT.

ERAS protocols

Use of ERAS (enhanced recovery after surgery) protocols.

These tools improve results when they are used by surgeons with specific training in them.

In colon cancer, the timing of the decision matters

At Quenet-Torrent we stay with you throughout the process, from the initial assessment of your case to follow-up after surgery.

Experience in complex cases

We focus on advanced and metastatic cancer, with techniques such as resection of liver metastases or cytoreduction with HIPEC, which not every center offers.

Comprehensive, multidisciplinary approach

Surgeons, oncologists, radiologists, nutritionists and psychologists review your case together.

Research

We follow the published scientific evidence and review our protocols when new data appear.

Surgical technology

We have Da Vinci robotic surgery, intraoperative fluorescence (ICG) and ERAS protocols, which allow precise and less invasive operations.

Personal, close care

We explain each step of the treatment and answer your questions throughout the process.

SEE MORE CASES

Colon cancer specialists

Surgeons on the team who treat colon cancer.

Prof. Julio García Aguilar

Prof. Julio García Aguilar

Colorectal surgeon

View doctor: Prof. Julio García Aguilar
Chief of the Colorectal Service at Memorial Sloan Kettering Cancer Center, specialized in colon and rectal surgery, robotic surgery and organ preservation.
Dr. François Quenet

Dr. François Quenet

Oncological surgeon

View doctor: Dr. François Quenet
"As an oncological surgeon, my experience in treating colorectal tumors has taught me that surgery remains the cornerstone of curing this disease."
Dr. Patricia Tejedor

Dr. Patricia Tejedor

Colorectal surgeon

View doctor
Doctor of Medicine (Sobresaliente Cum Laude, UAM) and specialist in colorectal and robotic surgery. More than 100 scientific publications and a double fellowship in robotic colorectal surgery.

Frequently asked questions about colon cancer

Answers to the most common questions about diagnosis, treatment and prognosis.

Can surgery cure colorectal cancer?

Yes. When the tumor is localized, or has metastases that can be removed, complete resection is the only route with curative intent. Chemotherapy accompanies surgery and reduces the risk of relapse, but does not replace it. That is why the first question with colorectal cancer is always whether it is operable.

Is it always possible to operate laparoscopically or robotically?

In most cases, yes. It depends on the size and location of the tumor, previous surgery and the patient's condition. The minimally invasive approach reduces pain and shortens the hospital stay, but when it compromises the oncological quality of the resection, open surgery is chosen without hesitation.

What happens if the tumor is very low in the rectum?

Sphincter-preserving techniques are used whenever the distance to the anus and the response to treatment allow it. In some cases a permanent colostomy is necessary. Robotic surgery widens the possibilities of preservation in the narrow pelvis, but an individual assessment is essential before deciding.

Can cancer with liver metastases be operated on?

Yes, in selected cases. Resection of the liver metastases, alone or combined with resection of the primary tumor, can offer long survival and even cure. What decides is not the number of lesions, but whether they can all be removed while leaving enough healthy liver in working condition.

What is the role of HIPEC in these tumors?

HIPEC is indicated in selected cases of peritoneal carcinomatosis of colorectal origin, always combined with complete cytoreduction. After the PRODIGE 7 trial it stopped being used routinely for this origin, so the decision is made case by case by the multidisciplinary board.

When is colon or rectal cancer operated on?

As a general rule, once the staging workup has been completed, which determines whether the disease is localized or has spread. In locally advanced rectal cancer, chemoradiotherapy is usually given before surgery to shrink the tumor and allow an operation with a sufficient margin.

What prognosis can be expected after curative surgery?

It depends mainly on the stage. In stages I and II, 5-year survival exceeds 80%, and in stage III, with adjuvant chemotherapy, it is between 60% and 70%. The quality of the resection and lymph node involvement are the other two decisive factors.

What follow-up is needed after surgery?

Regular check-ups with tumor markers (CEA), CT and colonoscopy, according to established protocols and for at least five years. The aim is twofold: to detect a relapse while it is still operable and to find new polyps before they turn into a second tumor.

Is surgery painful or are complications common?

Minimally invasive surgery reduces postoperative pain and complications compared with open surgery. ERAS enhanced recovery protocols, with early mobilization, early nutrition and pain control without excess opioids, shorten the hospital stay. Complications do occur, but they are less frequent in teams with volume.

Where can this surgery be performed safely?

At centers with proven experience in oncological colorectal surgery and enough case volume. It is worth asking how many operations of this kind the team performs each year and whether it has a multidisciplinary board. In this surgery, the team's volume translates directly into oncological and functional results.

Where to treat colon cancer?

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

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.

Paseo de la Casa de Campo, 5 28223 Pozuelo de Alarcón, Madrid
View Memorial Publio Cordón Hospital
Centro Médico Teknon, Barcelona
Barcelona

Centro Médico Teknon

Private hospital in Barcelona where the team performs high-complexity surgical oncology.

Carrer de Vilana, 12 08022 Barcelona
View Centro Médico Teknon

Patients treated by the Quenet Torrent team

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, with good survival and quality of life.

Read the full case

Felipe's case

A mistaken diagnosis of terminal colon cancer that a second opinion revealed to be pseudomyxoma peritonei, treatable with cytoreductive surgery and HIPEC.

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 survival.

Read the full case

What our patients say

See on Google 4.5/5
L
Loreto Toscano
4 weeks ago
5/5

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 personal care is excellent and so are the results. This is of vital importance for cancer patients.

K
Kanijo Sánchez
5 months ago
5/5

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
5/5

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
5/5

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
5/5

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
5/5

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
5/5

I have peritoneal carcinomatosis. When I sent my diagnosis to every center, practically all of them agreed on palliative chemo with little survival time, since I had a very aggressive type of cell. 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, because during the operation the harmful cells that everyone had diagnosed, and that were the reason nobody would operate on me, were not there. This intervention has become the best investment of my life.

M
Mara Reboredo
6 years ago
5/5

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
5/5

Dr. Torrent is a brilliant surgeon and a very approachable and warm doctor, whose manner reveals all the qualities that make him a great person and professional: perseverance, innate curiosity and a desire to learn, humility, sincerity and empathy. Going through an operation is undoubtedly an intense experience, physically and emotionally, in which anxieties arise and you feel very vulnerable. All of that is normal, and as his former patient I can say that his care and professionalism throughout the process were absolutely exceptional. I felt very supported by him, with the confidence of knowing I was in the best hands. I will always be grateful to him. Moltes gràcies Dr. Torrent!

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