Confirm histological grade
Confirm histological diagnosis and grade, which is the main determinant of prognosis.
Specialized Unit
Appendicular Carcinomatosis: Pseudomyxoma + Cytoreduction
At Quenet-Torrent Institute, we specialize in treating appendicular peritoneal carcinomatosis and pseudomyxoma peritonei — conditions with among the best prognoses of all peritoneal malignancies when managed in a specialized center.
CONTACT SPECIALIST
Our team's track record
World leaders in abdominal oncological surgery
The Quenet Torrent Institute team brings decades of international experience in highly complex oncological surgery, with results published in leading scientific journals and recognition from European surgical oncology societies.
+20,000
Oncological surgeries performed
+500
Cytoreductive surgery + HIPEC procedures
30+
Years of international experience
Top
European reference centre in carcinomatosis
Clinical summary
Peritoneal carcinomatosis of appendiceal origin —including pseudomyxoma peritonei— is treated with complete cytoreductive surgery (CRS) and HIPEC with mitomycin C, achieving 10-year survival rates above 70% in expert centres. At Quenet-Torrent Institute (Barcelona · Madrid), Dr. Quenet, Dr. Torrent and Prof. González Bayón have performed over 500 CRS+HIPEC procedures.
What is appendicular carcinomatosis?
Appendicular carcinomatosis refers to peritoneal dissemination originating from appendicular tumors. The most notable form is pseudomyxoma peritonei, a rare condition characterized by progressive accumulation of mucinous material in the abdominal cavity — colloquially known as "jelly belly".
These tumors span a histological spectrum from low-grade mucinous neoplasms (LAMN) to mucinous adenocarcinoma. Among all peritoneal malignancies, this group has the most favorable prognosis when treated with complete cytoreduction and HIPEC in specialized centers.
With complete resection (CC0/CC1), 10-year survival can exceed 70% in low-grade tumors, and 5-year survival over 80% in selected cases.
Why request a second opinion for appendicular carcinomatosis?
This rare condition requires management in specialized centers with extensive experience.
Evaluate resectability
Assess whether complete cytoreduction is achievable based on disease extent.
Optimal timing
Determine the best time for surgery — particularly relevant in slow-growing low-grade disease.
Specialized center
Ensure you are treated at a center with documented experience in these rare tumors.
The surgeon's experience is the most important prognostic factor in pseudomyxoma peritonei.
How do we treat appendicular carcinomatosis?
Surgical treatment combined with HIPEC is the standard of care and the foundation of potentially curative management.
Complete cytoreductive surgery
Removal of all visible mucinous disease and affected peritoneal surfaces — the most critical factor for cure.
HIPEC
Hyperthermic intraperitoneal chemotherapy to destroy microscopic residual cells after cytoreduction.
Multivisceral resections
Removal of affected organs when necessary: omentum, spleen, gallbladder, ovaries, portions of bowel.
Iterative surgery
Repeat interventions for recurrences in selected patients — particularly effective in low-grade disease.
The goal is complete cytoreduction (CC-0/CC-1) to maximize long-term survival.
Our Technology
Technology for treating appendicular carcinomatosis
Specialized technology is essential in these complex and often lengthy surgeries.
Automated HIPEC equipment
Precise thermal and flow control for optimal intraperitoneal perfusion.
CT and MRI imaging
Detailed preoperative evaluation of disease distribution and extent.
Tumor markers (CEA, CA 19-9)
Serial monitoring for disease follow-up and early detection of recurrence.
Expert pathology review
Specialist pathologists for accurate histological grading — critical for prognosis.
WHY CHOOSE US?
Reference center for pseudomyxoma peritonei
Quenet-Torrent Institute is a reference center for these rare appendicular conditions with extensive accumulated experience.
Experience in Complex Cases
We specialize in treating advanced and metastatic cancer, using innovative techniques that other teams do not offer.
Comprehensive Multidisciplinary Approach
We form a team around you with surgeons, oncologists, radiologists, nutritionists, and psychologists, all working together for your cure.
Research and Innovation
We stay up to date with the latest scientific advances, allowing us to apply innovative treatments with better results.
State-of-the-Art Technology
We have facilities equipped with the most current medical technology, allowing us to perform high-precision procedures with less impact on the body.
Personalized and Close Care
We care about each patient as a person. We listen, support, and guide every step of the way.
Our Team
Appendicular carcinomatosis specialists
Every physician at Quenet-Torrent Institute is a recognized expert in their field, committed to each patient's well-being.
Dr. François Quenet
Oncological Surgeon
View doctor"Internationally renowned surgeon, expert in gastrointestinal and hepatobiliary tumors. Recognized for his precision in highly difficult surgeries."
Dr. Juan José Torrent
Oncological Surgeon
View doctor"Specialist in gynecological tumors and peritoneal carcinomatosis. A reference in complex and personalized oncological surgery."
Where to treat
Where to treat appendiceal carcinomatosis?
The Quenet-Torrent team consults and operates in two leading private hospitals in Spain, and welcomes international patients with prior remote case assessment.
Barcelona
Centro Médico Teknon
Carrer de Vilana, 12 · 08022 Barcelona, Spain
- Consultations with the Quenet-Torrent team
- High-complexity surgical theatre and HIPEC
- Reference private hospital in Catalonia
Madrid
Memorial Publio Cordón Hospital
Paseo de la Casa de Campo, 5 · 28223 Pozuelo de Alarcón, Madrid, Spain
- Surgical oncology unit of the Quenet-Torrent team
- Cytoreductive surgery, HIPEC, PIPAC and robotics
- High-tech private hospital (2026)
International
Patients from around the world
We receive patients with appendiceal carcinomatosis referred from Europe, Latin America and the Middle East.
- Remote case assessment by our committee
- Travel and stay coordination in Spain
- Care in Spanish, English and French
Frequently asked questions about appendicular carcinomatosis
Answers to the most common questions about diagnosis, treatment, and prognosis.
What is pseudomyxoma peritonei?
A syndrome characterized by progressive accumulation of mucinous material in the abdominal cavity, usually originating from an appendicular mucinous tumor.
Is pseudomyxoma peritonei cancer?
It depends on the type. Low-grade LAMN is considered borderline; mucinous adenocarcinoma is cancer. In both cases, the approach is similar: complete cytoreduction with.
What is the prognosis of pseudomyxoma peritonei?
Excellent when treated in specialized centers. With complete cytoreduction and HIPEC, 10-year survival can exceed 70% in low-grade tumors Outcomes depend on histology, PCI score, and completeness of cytoreduction.
How long does surgery take?
Cytoreductive surgery with HIPEC can last 8-14 hours depending on disease extent, with continuous adjustment based on intraoperative findings of the case.
What if the disease recurs?
Repeat surgeries are possible and can be effective, particularly in low-grade disease where long-term control is achievable over multiple interventions.
Where can I receive this treatment safely?
In specialized centers with extensive experience in pseudomyxoma and appendicular tumors, like Quenet-Torrent Institute Chemotherapy complements surgery to optimise overall oncological control.
Verified reviews
See on Google
★★★★★
What our patients say
L
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
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
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
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
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
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
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.
Where to treat peritoneal carcinomatosis of appendicular origin?
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.
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.
View hospital
Barcelona
Centro Médico Teknon
Leading private hospital in Barcelona where the team carries out its high-complexity surgical oncology activity.
Page coming soon
Real cases
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 caseRosario (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 caseLaura's case
Rare abdominal tumor treated with complex cytoreductive surgery plus HIPEC and systemic chemotherapy. Disease-free after almost 2 years.
Read the full caseSantiago'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
Verified reviews
See on Google
★★★★★
What our patients say
L
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
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
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
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
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
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
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.
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