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Lymphoma of the stomach and intestine · Gota OPD, Ahmedabad · Apollo Hospital, Bhat, Gandhinagar
Last updated: 11 October 2026
Primary GI lymphoma is treated mainly with medicines, not with an operation. It is a cancer of immune cells (lymphocytes) that starts in the stomach or intestine wall.
The treatment depends on the type found at biopsy. For MALT lymphoma of the stomach, antibiotics to clear the H. pylori germ come first. Radiotherapy and chemotherapy treat the types that need them. Surgery has a narrow role. It is used for a perforation, or bleeding that cannot be stopped another way. It is used for a bowel that stays blocked. It is also used to get tissue for diagnosis when endoscopy cannot. Most patients are never operated.
A thickened stomach or a mass in the bowel may be a lymphoma. It may also be an ordinary stomach or bowel cancer (adenocarcinoma), a GIST or Crohn’s disease. Or it may be a lymphoma that started in lymph nodes elsewhere and only touches the gut. These are treated in very different ways. So the first job is to find out which one it is, before anyone plans an operation.
Shah’s Gastro, Cancer & Robotic Surgery Centre. Trained in super-specialty surgical gastroenterology programmes and qualified twice over in the specialty. He has 18 years of experience in stomach and bowel surgery. All of this sits within one practice. It covers endoscopy review and deep biopsy planning, with fresh tissue sent to the laboratory. It covers staging and treatment planned with haemato-oncology and radiotherapy. It also covers emergency surgery for perforation, bleeding and blockage, and long-term endoscopic follow-up.
Dr Harsh Shah
MS, MCh (Surgical Gastroenterology), DrNB (Surgical Gastroenterology)
Registered with Gujarat Medical Council, Reg. No. G-38738
Gastro & Cancer Surgeon · Apollo Hospital, Bhat, Gandhinagar · Gota OPD, Ahmedabad
Google rating 4.89 from 216 reviews at the Gota clinic, and 4.94 from 18 reviews at Apollo, Bhat.
Some features make a surgeon think of lymphoma. The stomach may be thick and rubbery all over. An ulcer may not heal on proper acid-reducing tablets. A bulky mass in the small bowel may balloon the bowel open rather than narrow it. A “Crohn’s” segment may behave oddly. A young adult may have a blocking mass in the bowel. There may be fever, night sweats and weight loss. A bulky mass under the lining may bleed. Or, in an adult, one segment of bowel may telescope into the next. None of these proves lymphoma. The biopsy does.
| Condition | What separates it |
|---|---|
| Primary GI lymphoma. | Deep biopsies with special stains and molecular tests on fresh tissue. |
| Stomach or bowel adenocarcinoma. | Biopsy; this is treated by surgery and has its own pathway. |
| GIST | Biopsy with its own markers; treated by surgery or targeted tablets. |
| Lymphoma of lymph nodes that touches the gut. | Scans and marrow show it began outside the gut — treated by the blood-cancer team from day one. |
| Crohn’s disease or tuberculosis of the bowel. | Biopsy and the overall pattern; both are non-cancer conditions with their own treatment. |
Lymphoma grows under the lining of the stomach or bowel. So small surface biopsies often miss it.
The endoscopist takes several deep, large biopsies, sometimes removing a whole abnormal fold with a wire loop. Part of the tissue goes fresh — not only in formalin — to the blood-cancer pathology laboratory.
Fresh tissue allows tests that formalin destroys. These are flow cytometry, touch preparations and genetic (FISH and molecular) studies. The pathologist uses a panel of stains. These include CD20, cyclin-D1, Ki-67 and the markers that separate subtypes of large-cell lymphoma. For MALT lymphoma of the stomach, the pathologist also looks for a gene change, t(11;18). It predicts whether antibiotics alone will work. In aggressive types, tests for MYC, BCL2 and BCL6 changes decide how strong the chemotherapy must be. Every stomach lymphoma is also tested for H. pylori, on the biopsy and by a breath or stool test. Getting this right at the start prevents the commonest harm in this disease. That harm is an operation planned for a “tumour” that was a lymphoma all along.
After the biopsy confirms lymphoma, blood tests and scans find out how far it has spread and how aggressive it is.
A PET-CT is strongly preferred for the aggressive types. A bone-marrow biopsy is part of staging. An endoscopic ultrasound shows how deep a stomach lymphoma goes.
| Test | What it decides |
|---|---|
| Endoscopy or colonoscopy with deep, multiple biopsies; fresh tissue to the laboratory. | Whether it is lymphoma, and which type. |
| H. pylori test on biopsy, plus breath or stool test. | Whether antibiotics are the first treatment for a stomach MALT lymphoma. |
| Blood count, kidney and liver tests, LDH, β2-microglobulin, uric acid. | Fitness, how active the disease is, and the risk of chemicals released when the tumour breaks down. |
| HIV, hepatitis B and C. | Infections that change treatment, especially before rituximab. |
| Contrast CT of neck, chest, abdomen and pelvis. | The stage — how far the disease has spread. |
| PET-CT for aggressive types. | The stage, and a baseline to judge the response at the end of treatment. |
| Endoscopic ultrasound for stomach lymphoma. | Depth in the stomach wall and nearby lymph nodes. |
| Bone-marrow biopsy, and assessment of brain and spinal-fluid risk. | Spread to the marrow, and whether preventive treatment for the brain is needed. |
A baseline PET-CT is obtained wherever the result will change treatment or the cost can be met. If it is not done, that is recorded. The response at the end of treatment is then read on CT instead. A PET response score without a baseline scan means nothing and is never reported. The team also asks about coeliac disease, immune suppression and HIV. These change the likely type. Weight loss, poor intake or a low albumin bring in the dietitian before treatment starts.
GI lymphoma is staged with the Lugano system, never with the TNM system used for stomach and bowel cancer.
Giving a lymphoma a TNM stage pushes the team towards a cancer operation. That is the wrong treatment for this disease.
| Stage | Extent |
|---|---|
| Stage I | Confined to the stomach or bowel wall — within the lining layers, or through them. |
| Stage II | Spread to lymph nodes in the abdomen — nearby or further away. |
| Stage IIE | Through the outer layer of the gut into a neighbouring organ. |
| Stage IV | Spread widely outside the gut, or to lymph nodes above the diaphragm. |
For the aggressive types, a risk score (IPI) is added. It is built from age, stage, LDH level, general fitness and the number of sites outside lymph nodes. Fitness is recorded at every visit. It guides how strong the treatment can be.
There is no single “lymphoma treatment”. The type at biopsy decides it: antibiotics for H. pylori, radiotherapy that keeps the stomach, rituximab-based treatment, standard chemotherapy, or urgent intensive chemotherapy.
The haemato-oncologist owns the disease. The surgeon’s job is the complication, if one occurs.
| Type and setting | Usual treatment |
|---|---|
| Gastric MALT lymphoma, essentially any stage. | H. pylori eradication first — a 14-day bismuth quadruple course is the clinic default. |
| Gastric MALT with the t(11;18) change, deep or nodal disease, or no response. | Radiotherapy to the involved stomach, which keeps the stomach in place. |
| MALT lymphoma that is widespread, bulky, unsuitable for radiotherapy, or returns. | Rituximab-based treatment, for example with chlorambucil or bendamustine. |
| Diffuse large B-cell lymphoma (DLBCL). | R-CHOP chemotherapy, usually six cycles; radiotherapy to bulky or residual disease; brain prevention if high-risk. |
| High-grade “double-hit” or “triple-hit” lymphoma. | More intensive chemotherapy, such as DA-EPOCH-R, with brain prevention. |
| Burkitt lymphoma | Short, intensive chemotherapy started within days, with strong protection against tumour-breakdown chemicals and brain prevention. |
| Mantle-cell lymphoma with many bowel polyps. | Systemic treatment through haemato-oncology — removing the colon does not treat it. |
| EATL (linked to coeliac disease) and IPSID. | EATL: chemotherapy after the bowel is treated; early IPSID: antibiotics first. |
Any MALT lymphoma with a high-grade component is treated as a large-cell lymphoma. In large-cell lymphoma of the stomach, H. pylori is still cleared if present. But this is only an addition. It does not replace chemotherapy. Every patient is referred to the dietitian early. Nutrition is never allowed to delay chemotherapy.
For MALT lymphoma of the stomach, clearing H. pylori with antibiotics is the first treatment at essentially every stage.
Resistance to the antibiotic clarithromycin is high in India. So the clinic uses a 14-day bismuth quadruple course. The lymphoma then shrinks slowly. So patience and repeated endoscopy are part of the plan.
Most patients with GI lymphoma are never operated. That is the correct treatment, not a missed one.
Lymphoma is a disease of the whole body. It responds to chemotherapy and radiotherapy. Removing the stomach or a length of bowel does not make those treatments unnecessary. A wider margin does not change the outcome.
Even a partly blocked bowel does not always need an operation once the diagnosis is known. With tissue already confirmed, the bowel is rested with a tube through the nose and fluids into the vein. Then treatment is started. Bulky lymphoma often shrinks quickly on R-CHOP. In Indian practice, small-bowel lymphoma is still often removed straight away, as if it were an ordinary cancer. This practice operates only for a complication or to get tissue. Sometimes a cancer operation is planned on a suspected lymphoma without a confirmed diagnosis. Any such plan is stopped and reviewed the same day.
Surgery in GI lymphoma is for diagnosis and rescue. The team operates on the complication, not on the lymphoma. It does the smallest operation that controls the crisis.
★★★★★
“We are much satisfied with robotic surgery done by Dr harsh shah. He is very humble in nature. Highly recommended for gastro cancer surgeon in Ahmedabad. Thank u so much sir. — Jyotsnaben Kotwal, Google review, Gota clinic listing”
★★★★★
“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, Gota clinic listing”
★★★★★
“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, Apollo Bhat listing”
The reviews below are from Dr Harsh Shah’s two Google listings, quoted exactly as written. None describes lymphoma. They describe his care of stomach and bowel cancers more generally.
When an operation is needed, it is the smallest one that controls the problem. It is never a radical cancer operation with a formal lymph-node clearance.
The whole specimen goes fresh to the laboratory, marked as possible lymphoma. This lets the diagnosis be completed.
| Problem | Operation |
|---|---|
| Perforation of the stomach. | Stitching the hole, a patch of fat (omentum) over it, or a small wedge removal. Part or all of the stomach is removed only if the hole or bleeding cannot be controlled otherwise. |
| Perforation or blockage of the small bowel. | Removal of the affected segment and joining of the ends. It treats the problem and gives the diagnosis. |
| Blockage at the junction of small and large bowel, or in the colon, without a diagnosis. | Removal of the segment only, not a radical cancer resection. |
| Bleeding | Resuscitation, then endoscopic control, then angioembolisation; surgery last, as a stitch, wedge or segment. |
| An unstable patient. | Damage control: stop the leak or bleeding, close temporarily, intensive care, finish later. |
In Burkitt lymphoma the tumour is never “debulked”. A segment may be removed during an emergency operation for a complication. But the operation is never the treatment. Sometimes an emergency operation finds a “tumour” that is bulky, soft or ballooned open, or has lymph nodes out of proportion. Then the surgeon thinks of lymphoma. The surgeon deals with the complication, takes generous biopsies, and stops.
A bulky lymphoma may go through the full thickness of the gut wall. It can then burst as it melts away on chemotherapy, mostly in the first one or two cycles.
Before cycle one, these patients are flagged to the surgeon. New abdominal pain during that time is treated as an emergency. It is not reassured away.
| Sign | What it may mean, and the response |
|---|---|
| New abdominal pain, a rigid abdomen, or air under the diaphragm during the first cycles. | Perforation as the tumour responds — X-ray or CT, resuscitation, emergency operation. |
| Falling urine output, rising potassium, phosphate or uric acid within days of starting. | Tumour lysis — fluids, drugs to lower uric acid, close monitoring with the haemato-oncology team. |
| Black stools or vomiting blood from a known bulky mass. | Tumour bleeding — resuscitation, endoscopy, embolisation, surgery last. |
| Fever with a very low white-cell count after chemotherapy. | Neutropenic fever — cultures and antibiotics into the vein within the hour. |
After an operation for a complication, recovery follows a set fast-recovery plan. The most important step before going home is a fixed date to start or resume chemotherapy.
The operation is the start of treatment, not the whole of it. An untreated bulky lymphoma keeps bleeding or perforating until it is treated.
| Day | What happens |
|---|---|
| Day of surgery. | Sitting out when stable, sips of water, pain relief with few opioids, tumour-lysis blood tests in bulky disease. |
| Next day | Liquid diet, walking, catheter out if stable; haemato-oncology told of the operative findings. |
| Second and third day. | Soft diet, drip and pain relief reduced; the laboratory report on the fresh tissue followed up. |
| Fourth to sixth day. | Full soft diet, drain out if placed, readiness for home checked; chemotherapy date fixed before discharge. |
To go home, you need no fever for a day, a soft diet, walking without help, and pain controlled with tablets. You also need a written appointment with haemato-oncology. A fast pulse, new or worse pain, fever, a cloudy drain, or falling urine output stop the plan. They bring the surgeon back at once.
The risks of an emergency operation for a lymphoma complication are higher than those of a planned one. They are higher still with peritonitis, older age, poor nutrition or a burst during chemotherapy.
The surgery treats the complication. Chemotherapy treats the disease. The figures that apply to each patient are given at the consent discussion.
General: bleeding needing transfusion, wound infection, clots in the leg or lung, heart problems and anaesthetic complications. Specific: a leak from the join, more likely on chemotherapy or with poor nutrition. An abscess in the abdomen. A slow return of bowel function. A temporary stoma. The wound opening. Perforation of another segment during later chemotherapy. Tumour lysis in bulky disease. There is a risk to life. It is much higher in an emergency with peritonitis than after a planned diagnostic operation. Long term: chemotherapy starts as soon as recovery allows. Follow-up lasts for years. The side-effects of chemotherapy are explained separately by the oncology team.
For MALT lymphoma of the stomach, follow-up is by repeated endoscopy and biopsy, each graded on the GELA scale.
For the aggressive types, follow-up is by clinic review and blood tests. Scans are done when symptoms or results call for them. Routine scans are not done.
| Grade | Action |
|---|---|
| Complete histological remission. | Surveillance only |
| Probable minimal residual disease. | Watch and wait, endoscopy every six months. |
| Responding residual disease. | Watch and wait up to twelve to eighteen months if there are no symptoms. |
| No change | Antibiotic treatment has failed — radiotherapy or systemic treatment. |
For MALT lymphoma, endoscopy is repeated every six months until two in a row are clear. Then it is done yearly. It does not stop at five years, because the stomach keeps a long-term risk of ordinary stomach cancer. For aggressive types, a PET-CT at the end of treatment is read against the baseline scan, if one exists. Then there is clinic review with blood count and LDH. This is every three months for two years, every six months to five years, and yearly after that. After gastrectomy, B12 and iron are checked. After EATL, a gluten-free diet is followed. After rituximab, hepatitis B is monitored. If the disease returns, it is biopsied again before treatment. A change to a more aggressive type alters the whole plan.
Every confirmed GI lymphoma is discussed with the haemato-oncology team before treatment. The physician leads the treatment of the lymphoma. The surgeon is involved for diagnosis, for any planned operation, and for bulky disease that might burst during chemotherapy.
Most of the cost of GI lymphoma care lies in the tests and the medical treatment, rather than in surgery. The cost of a PET-CT is discussed openly.
The tests and treatment include pathology on fresh tissue, scans, and chemotherapy or radiotherapy. A PET-CT is strongly preferred but not essential in every case. A written estimate is given before any planned admission.
Apollo Hospital, Bhat, works with the major insurers and cashless schemes. The office handles pre-authorisation directly, including for emergency admissions. Bring the endoscopy and biopsy reports, pathology slides and blocks, and scan images with reports. Also bring blood reports, discharge papers, a list of medicines, the insurance card and identification.
Usually not. Lymphoma is treated by its type. That means antibiotics for H. pylori, radiotherapy or chemotherapy. The stomach is removed only rarely, when a perforation or bleeding cannot be controlled any other way.
For MALT lymphoma of the stomach, clearing H. pylori is the first treatment at essentially every stage. Endoscopy and biopsies over the following months show whether it has worked. If not, radiotherapy or other treatment follows.
Lymphoma grows under the lining, so small surface biopsies can miss it. Also, tissue kept only in formalin cannot be used for every test. Deep, larger biopsies with fresh tissue are often needed.
For the aggressive types it shows the stage. It also gives a baseline to judge the response at the end of treatment. It is strongly preferred. If it is not done, the response is judged on CT, and the report says so.
It can, in bulky lymphoma that goes through the full thickness of the wall. This happens mainly in the first one or two cycles. New abdominal pain during that time needs urgent review.
The haemato-oncology team leads the treatment of the lymphoma. The surgeon is involved for diagnosis, for complications and for any operation, and the two teams decide together.
Shah’s Gastro, Cancer & Robotic Surgery Centre — Gota, Ahmedabad
Consultations, review of endoscopy, biopsy and scan reports, follow-up after treatment or an operation.
Google: Dr Harsh Shah · 4.89 from 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.
Google: Dr Harsh Shah – Robotic GI Surgeon · 4.94 from 18 reviews
Directions to Apollo, Bhat · WhatsApp +91-63555-64601
Patients come to Ahmedabad from across Gujarat. They come from Gandhinagar, Mehsana, Banaskantha, Nadiad, Anand, Bhavnagar, Rajkot, Jamnagar and Kutch. They also come from southern Rajasthan and western Madhya Pradesh.
Told there is a lymphoma in the stomach or bowel, or a mass that needs a biopsy? You can send reports ahead of the appointment. These are endoscopy and biopsy reports, pathology slides and blocks, scan images with reports, and blood reports. Then the consultation starts with them already read. Treatment is decided at the consultation, after examination and with the haemato-oncology team. Vomiting blood, black stools or sudden severe abdominal pain need the nearest emergency department now. Call +91-63555-64601 · Send the reports ahead on WhatsApp
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