Skip to main contentShah's Gastro, Cancer & Robotic Surgery Centre · Ahmedabad & Gandhinagar
Last updated: 20-Oct-2026
Appendix tumours: mucinous neoplasms (LAMN, HAMN), neuroendocrine tumours, adenocarcinoma and goblet cell tumours · appendix mucocele · pseudomyxoma peritonei · Gota OPD, Gota, Ahmedabad · Apollo Hospital, Bhat, Gandhinagar
Most appendix tumours are found by chance, on a scan or in the report after an appendix operation. Many need nothing more than that operation and a follow-up plan.
A mucocele is an appendix swollen with mucus. It must be removed whole, without bursting it, because spilled mucus can spread inside the belly.
Pseudomyxoma peritonei is jelly spreading inside the belly, usually from a burst appendix growth. It is treated by removing the disease and washing the belly with heated chemotherapy, called HIPEC.
The appendix is a small tube on the first part of the large bowel. Several kinds of growth can start in it, and they behave very differently from one another.
Shah’s Gastro, Cancer & Robotic Surgery Centre. Two higher degrees in surgery of the digestive system, and 18 years of experience in bowel, liver and pancreas surgery, and in removal of disease from the belly lining with HIPEC. Pathology, scans, chemotherapy and theatres work as one team at Apollo Hospital, Bhat.
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
Every case is discussed with the pathologist, the radiologist and the medical oncologist before a plan is made. Slides from another hospital are reviewed again when the type of tumour decides the operation.
The name on the biopsy report matters more than the size. Two growths of the same size can need very different care. This is why the first step is always to read the report carefully, and often to have the slides seen again by a pathologist who sees these tumours often.
| Type | What it is | What usually happens next |
|---|---|---|
| Neuroendocrine tumour (NET) | A slow-growing growth of hormone-type cells, often at the tip. | Small ones need only the appendix operation. Larger ones or those with risk features need a right colon operation. |
| Low-grade mucinous neoplasm (LAMN) | A growth that makes mucus. It can swell the appendix into a mucocele. | Removing the appendix whole is often enough. If it has burst, the belly lining is checked. |
| High-grade mucinous neoplasm (HAMN) | Like LAMN, but the cells look more abnormal. | Treated with more care, often like a low-grade cancer. |
| Adenocarcinoma | A true cancer of the appendix lining, mucinous or not. | Right colon operation with lymph glands, then chemotherapy when needed. |
| Goblet cell adenocarcinoma | A mixed tumour with features of both NET and cancer. | Right colon operation, and a check of the belly lining. |
| Serrated polyp or simple cyst | A non-cancer change, sometimes with a mucocele. | The appendix operation is the treatment. Follow-up is light. |
Most are found by surprise. The three common ways are a report after an appendix operation, a scan done for something else, and a swollen belly from jelly.
Testing runs in a fixed order: review the report and slides, scan the belly, check blood markers, then look inside the bowel. Each step changes what comes next.
A patient who was told “it was only appendicitis” should still read the final pathology report. If the word “neoplasm”, “carcinoid”, “NET”, “mucinous” or “adenocarcinoma” appears, the next step needs a specialist’s view.
A swollen appendix is not always a tumour. Infection, a blocked opening or endometriosis can look the same, and the final answer comes from the pathology report.
A simple retention cyst forms when the opening of the appendix gets blocked, and mucus builds up behind it. It is not a tumour. A mucocele from LAMN looks similar on a scan. Calcium in the wall, a large size or an irregular wall make a tumour more likely.
Other conditions that can look like a growth include an appendix abscess or mass after appendicitis, Crohn’s disease, tuberculosis of the bowel, and endometriosis in women. Each needs a different plan. We read the scan with the radiologist, and decide the operation only after the type of swelling is clear enough.
Treatment goes step by step: follow-up only, removal of the appendix, a right colon operation, then removal of disease from the belly lining with HIPEC. Most patients need only the first two steps.
Many patients need no further surgery after the appendix comes out. A small NET or an unburst LAMN with clear edges usually needs only follow-up scans.
Follow-up still matters in each of these. Scans and markers are repeated at set times, for some years. They catch the rare return early, when it is still easy to treat.
In an older or frail patient with slow pseudomyxoma, a large operation may carry more risk than the disease. Then a smaller operation to relieve symptoms, or careful watching, can be the right choice. We discuss this openly with the family.
The tumour type, its size and whether it burst decide the operation. The aim is to remove all disease in one planned operation, and to avoid a second one.
In women with a mucinous ovarian cyst, the appendix is checked and usually removed at the same operation, because the cyst may have started there.
A mucocele found by chance during another operation is not opened. If the right surgical team is not ready, the belly is closed and the operation is planned again. A burst mucocele in unskilled hands can turn a simple problem into pseudomyxoma.
In pseudomyxoma, jelly collects on the belly lining, the bowel and the ovaries. The aim is to remove all of it, then kill remaining cells with heated chemotherapy.
The operation is called cytoreductive surgery. The surgeon removes the jelly and the lining it sticks to. The omentum, a fatty apron in the belly, is removed. Parts of the bowel, the spleen, the gallbladder or the ovaries may be removed if they are coated. Then heated chemotherapy is circulated through the belly for a set time, and drained out.
Low-grade pseudomyxoma grows slowly over years. Even when it returns, a second operation is often possible. High-grade disease behaves more like cancer and usually also needs chemotherapy by vein.
After an appendix operation, most patients go home in a day or two. After a right colon operation, it takes a few days. After HIPEC, recovery takes weeks.
Walking starts on the first day. Sips of water start early, and food builds up as the bowel wakes up. A pain catheter in the back is often used after a large operation. After HIPEC, the first days are in intensive care, and a feeding tube may help for a while.
Every operation carries some risk, and a larger operation carries more. The main risks are listed below, so that you can ask about each one.
We explain the risks that apply to your operation, before consent, in words the family can follow.
Follow-up continues for some years after treatment. Mucinous tumours can return late, so they are watched for longer than small NETs.
★★★★★
“I had my appendix surgery done by Dr. Harsh Shah, and I am very satisfied with the care I received. Dr. Harsh Shah explained the procedure clearly, performed the surgery smoothly, and ensured I was comfortable throughout my treatment. The recovery has been excellent, and the entire experience was reassuring. I highly recommend Dr. Harsh Shah for his professionalism, expertise, and compassionate care.”
— Sakina Magar, Google review
★★★★★
“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
Reviews are shown exactly as written on Google. The first is about an appendix operation. None names an appendix tumour; the other two are about bowel and GI cancer care.
Cost depends on the operation: an appendix operation, a right colon operation or HIPEC. You get a written estimate once the plan is made.
Apollo Hospital, Bhat works with the major insurers and cashless options, and its office handles pre-authorisation. Please bring your ID, insurance card, a list of medicines, every pathology report, and the scans on a CD or a link. Ask the first hospital for the paraffin blocks and slides, because a second look at them often decides the plan.
Usually not, if the tumour is under 1 cm and fully removed. Larger tumours, or those with risk features, may need a right colon operation. The report decides.
It is an appendix swollen with mucus. The cause can be a simple blockage or a mucinous tumour. It should be removed whole, without bursting it.
Yes, in many patients, if it is handled gently and placed in a bag. A large or fragile one is safer removed by open surgery.
It is jelly-like mucus spreading over the belly lining, usually from a burst appendix growth. It grows slowly and is treated by surgery with HIPEC.
No. Low-grade mucinous tumours and small NETs do not need it. Adenocarcinoma, goblet cell tumours and high-grade disease often do.
Usually several years, with scans and blood markers at set times. Mucinous tumours can return late, so follow-up is longer for them.
Shah’s Gastro, Cancer & Robotic Surgery Centre — Gota, Ahmedabad
Consultations, review of reports, slides and scans, second opinions, follow-up.
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.
CT and MRI scanning, PET-CT, pathology, intensive care, chemotherapy, surgery and HIPEC.
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. You can call us on +91-63555-64601.
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