Skip to main contentShah's Gastro, Cancer & Robotic Surgery Centre · Ahmedabad & Gandhinagar
Last updated: 12-Oct-2026
Peritoneal surface malignancy · Gota OPD, Gota, Ahmedabad · Apollo Hospital, Bhat, Gandhinagar
Peritoneal surface malignancy means cancer on the thin lining inside the abdomen. It usually starts in another organ, such as the appendix, bowel, stomach or ovary.
Before any treatment, two things are proved. Is it really cancer, and not tuberculosis? And where did it start? The answer decides everything that follows.
Treatment runs from medicines to a major operation. For many patients, an operation is not the right step. The tests show which step fits your type of cancer.
The lining of the abdomen is called the peritoneum. Cancer reaches it in different ways, and each type is treated differently. Treating them as one disease is a common mistake.
Shah’s Gastro, Cancer & Robotic Surgery Centre. Trained in super-specialty surgical gastroenterology programmes, qualified twice over in the specialty, with 18 years of experience in GI and cancer surgery. Endoscopy, colonoscopy, image-guided biopsy, diagnostic laparoscopy, the tumour board with medical and gynaecological cancer specialists, intensive care, nutrition and stoma nursing work together in one pathway.
Dr Harsh Shah
MS, MCh (Surgical Gastroenterology), DrNB (Surgical Gastroenterology)
Registered with Gujarat Medical Council, Reg. No. G-38738
HIPEC & Abdominal Lining Cancer Surgeon · Apollo Hospital, Bhat, Gandhinagar · Gota OPD, Ahmedabad
Google rating at the Gota clinic: 4.89 from 216 reviews. At Apollo, Bhat: 4.94 from 18 reviews.
| Where it started | What it is called | How strong the case for surgery is |
|---|---|---|
| Appendix. | Pseudomyxoma peritonei, or a mucinous appendix tumour. | The strongest reason for surgery in this field. |
| Colon or rectum. | Bowel cancer spread to the lining. | Surgery for selected patients with limited disease. |
| Stomach. | Stomach cancer spread to the lining. | Very restricted. Mostly treated with medicines. |
| Ovary. | Ovarian cancer on the lining. | Planned jointly with the gynaecological cancer team. |
| The lining itself. | Peritoneal mesothelioma. | Surgery for selected patients at a specialist centre. |
Spread to the lining often causes vague symptoms. The signs below are a reason to look further, mainly in someone with a known or suspected cancer.
In India, tuberculosis of the lining can copy every sign of this cancer. That includes fluid, a thick fat apron, small spots and even a raised CA-125.
So no process on the lining is treated as cancer until tissue has been tested for both. Operating on tuberculosis as if it were cancer is a real and avoidable harm. The table shows how the tests tell them apart.
| Test | What points to tuberculosis | What points to cancer |
|---|---|---|
| Tissue under the microscope. | Inflammation of the kind tuberculosis causes. | Cancer cells, and their type. |
| AFB smear, GeneXpert and culture on the tissue. | The tuberculosis germ is found. | No germ is found. |
| Fluid tests. | A high ADA and many lymphocytes in the fluid. | Cancer cells may be seen in the fluid. |
| CT scan. | It can look the same as cancer. | It can look the same as tuberculosis. |
| CA-125 blood test. | It can be raised. | It can be raised. |
When the tissue proves tuberculosis, treatment for tuberculosis follows, and no cancer operation is planned. If the tests are unclear, the case goes back to the tumour board before any step is taken.
Each test answers one question. Doing them in order avoids wasted scans, and stops anyone being sent for a big operation too early.
The Peritoneal Cancer Index measures how much disease there is. The completeness score records what is left after an operation. Both guide every decision.
The index splits the abdomen into thirteen areas, each scored by the size of its largest spot. A low score does not mean surgery, and a high score does not always rule it out. The type of cancer matters more. Slow mucinous appendix disease can be removed even when widespread. Stomach cancer needs a very low score.
The completeness score matters just as much. Only an operation that leaves no visible disease, or only tiny specks, helps. So the key question is always this: can every visible spot be removed?
Treatment is chosen by the type of cancer, how far it has spread, and your fitness. Medicines are the backbone for most. Surgery is added only where it helps.
| Step | What it is | Who it is for |
|---|---|---|
| Medicines for the first cancer. | Chemotherapy and targeted drugs, given by the plan for where the cancer started. | Almost everyone, before and after any operation. |
| Cytoreductive surgery. | An operation to remove every visible spot from the lining. | Selected patients in whom complete removal looks possible. |
| Surgery with heated chemotherapy (HIPEC). | Warm chemotherapy washed through the abdomen after the disease is removed. | Appendix and mucinous disease, and mesothelioma. Ovarian cancer within the gynaecological plan. |
| Medicines only. | Treatment without an operation. | Most stomach cancers, wide small-bowel spread, or spread outside the abdomen. |
| Fluid control. | Draining fluid with a needle, or a thin tunnelled tube for fluid that returns. | Patients for whom an operation will not help. |
| Relief of a bowel block. | A stent, a stoma, a bypass, or supportive care, chosen early. | Patients with a blocked bowel from the disease. |
| Palliative care. | Comfort, symptom relief and support for the family, started early. | Anyone with symptoms, alongside other treatment. |
The evidence for surgery and for HIPEC is not the same for each cancer. That is why your plan depends on where your cancer started.
Appendix and pseudomyxoma. Complete removal with HIPEC is the established standard. Medicines play a small part in slow-growing disease.
Bowel cancer. Complete removal is what helps. A large trial added one HIPEC drug to complete surgery and found no gain in survival, with more complications. If HIPEC is proposed, you are told this first. Two other trials found no benefit from HIPEC given to prevent spread, so it is not offered for that.
Stomach cancer. The evidence for surgery is weak. It is kept for very limited disease that has responded well to medicines, preferably within a trial. Cancer cells found only in washings are treated as spread, with medicines.
Ovarian cancer and mesothelioma. For ovarian cancer, HIPEC is supported at a later operation after chemotherapy, within the gynaecological cancer team. For mesothelioma, surgery with HIPEC is standard in selected patients.
Saying no to surgery is part of good care here. An operation that cannot remove everything gives all the harm and none of the benefit.
When the operation is not the right step, treatment does not stop. Medicines continue, fluid is drained when needed, and comfort care starts early. A blocked bowel is managed by the gentlest method that works.
Cytoreductive surgery is a long, open operation, often with HIPEC. It needs weeks of preparation, a stay in intensive care, and months of recovery.
Preparation includes exercise, nutrition, correcting anaemia, and marking a stoma site. Consent is taken over more than one visit, never on the day. The operation can be stopped if complete removal is not possible. What happens in the operation is explained on the HIPEC treatment page.
Follow-up is written down and lasts years. It checks symptoms, weight, blood markers and scans, because the disease can return even after complete removal.
| When | What is checked |
|---|---|
| Two weeks after an operation. | Wound and stoma. The tissue report and completeness score. Referral for chemotherapy. |
| First two years. | Every three months: symptoms, weight, fitness and markers. A CT scan every three to six months. |
| Years three to five. | Every six months. MRI when CT is unclear about small spots. |
| Slow-growing pseudomyxoma. | Checks continue well beyond five years. Late return is often still treatable. |
★★★★★
“Met with Dr. Harsh Shah for the consultation of one of my relative. Dr. Harsh Shah is an exceptional surgical oncologist in Ahmedabad. His expertise in treating complex GI cancers like liver, pancreas, and colon cancers is truly remarkable. He explains everything clearly and gives patients full confidence in their treatment. Highly recommended for anyone looking for a skilled and compassionate cancer specialist.”
Nagesh Patidar · Google review
★★★★★
“We consulted Dr. Harsh Shah for rectal cancer treatment and had a very good experience. He is a very experienced and knowledgeable doctor who explained the treatment process clearly and guided us at every step. His supportive nature and professional approach gave us confidence throughout the treatment. We are grateful for his dedication and the care provided by him and his team. Highly recommended for rectal cancer treatment in Ahmedabad.”
Mamta Somar · Google review
★★★★★
“Dr harsh sir is a good doctor for Liver, Gastro & Cancer Surgeon in Ahmedabad thanks sir.”
Milan Pareek · Google review
Quoted exactly as written on Google. These patients and families were treated by Dr Harsh Shah for other GI cancers.
Whether any of these treatments suits you is decided only after your own tests and the tumour board.
The cost depends on the step you need. Medicines, a keyhole look and a major operation differ widely. You get a written estimate before treatment starts.
Apollo Hospital, Bhat works with the major insurers and cashless schemes. Its office handles pre-authorisation. A major operation with HIPEC adds intensive care days and the chemotherapy drug to the bill. Please bring every biopsy and scan report, scans on a disc, past treatment notes, your medicine list, your insurance card and an ID.
No. In India, tuberculosis is a common cause that looks the same on scans. Tissue tests tell them apart.
No. Many are treated with medicines only. Surgery is for selected patients in whom every visible spot can be removed.
Scans miss small spots. The keyhole look scores the disease directly and shows whether complete removal is possible.
No. It depends on where the cancer started. For bowel cancer the evidence is limited, and you are told this before consent.
Medicines continue, fluid is drained when needed, and comfort care starts early. A blocked bowel is treated by the gentlest method that works.
Usually five years, with visits every three months at first. Slow-growing pseudomyxoma is followed for longer.
Shah’s Gastro, Cancer & Robotic Surgery Centre — Gota, Ahmedabad
Consultations, review of biopsy and scan reports, second opinions, follow-up after treatment.
Google: Dr Harsh Shah · 4.89 · 216 reviews
Directions to the Gota clinic · +91-63555-64601
Apollo Hospital — Bhat, Gandhinagar
Apollo Hospital International Limited, Plot No. 1 A, GIDC Bhat Industrial Estate, Bhat, Gandhinagar.
Keyhole look, open surgery with HIPEC, intensive care and inpatient care.
Google: Dr Harsh Shah – Robotic GI Surgeon · 4.94 · 18 reviews
Directions to Apollo, Bhat · WhatsApp +91-63555-64601
Patients come to Ahmedabad from across Gujarat, southern Rajasthan and western Madhya Pradesh.
Fluid in the abdomen, or told there are spots on the lining? Biopsy reports, CT, MRI or PET-CT images with their reports, tumour markers, endoscopy reports and any operation note can be sent ahead of the appointment, so the consultation starts with them already read. Treatment is decided at the consultation, after examination and at the tumour board. Call +91-63555-64601 · Send the reports ahead on WhatsApp
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