Digestive Cancer Knowledge Centre
Your complete guide to digestive-tract cancers — causes, symptoms, diagnosis, staging, treatment options and recovery. Trusted, evidence-based information by Dr. Avinash Tank.

What this centre covers
Digestive (gastrointestinal) cancers can affect any part of the tract — the food pipe, stomach, liver, pancreas, gallbladder, bile duct, small intestine, colon and rectum. Caught early and treated by an experienced super-specialist team, many of these cancers are curable. This centre explains each one in plain language and links you to the right care.
Topics
Liver CancerLiver cancer is a malignant tumour arising in the liver, often on a background of cirrhosis or hepatitis. When caught early it can be treated with surgical resection or transplantation, offering the best chance of cure.
Learn more 02
Pancreatic CancerPancreatic cancer is an aggressive tumour of the pancreas that often causes few early symptoms. Early-stage disease may be cured with major surgery such as the Whipple operation, combined with chemotherapy — making prompt, specialist assessment vital.
Learn more 03
Gallbladder CancerGallbladder cancer is an uncommon but serious tumour, sometimes discovered unexpectedly after routine gallstone surgery. Early-stage disease is treated with an extended (radical) surgical removal, which offers the best chance of cure.
Learn more 04
Stomach (Gastric) CancerStomach cancer arises in the lining of the stomach and often causes vague early symptoms such as indigestion and reduced appetite. Curative treatment is surgical removal (gastrectomy) with lymph-node clearance, frequently combined with chemotherapy.
Learn more 05
Colon CancerColon cancer develops in the large intestine, most often from polyps that grow slowly over years and can be removed during colonoscopy before they turn cancerous. Caught early, surgery offers a high chance of cure — which is why screening saves lives.
Learn more 06
Rectal CancerRectal cancer affects the last part of the large bowel. Thanks to modern sphincter-preserving surgery, often combined with chemo-radiotherapy, most patients can be cured while keeping normal bowel function and avoiding a permanent stoma.
Learn more 07
Neuro-Endocrine Tumour (NET)Neuro-endocrine tumours (NETs) are usually slow-growing tumours arising from hormone-producing cells in the digestive tract and pancreas. Many are curable with specialised surgery, and even advanced NETs can often be controlled for years.
Learn more 08 GIST (Gastrointestinal Stromal Tumour)GISTs are rare tumours that grow in the wall of the digestive tract, most often the stomach. They are treated by precise surgical removal — frequently by keyhole surgery — and, when needed, highly effective targeted (oral) therapy.
Learn moreWhy this matters
Most GI cancers are silent in their early, most curable stage. By the time obvious symptoms appear, the disease can be advanced. Knowing the warning signs — and acting on them quickly with the right tests — is the single biggest factor in a good outcome.
Common symptoms to watch for
- Unexplained weight loss
- Persistent abdominal pain
- Blood in stool or black stools
- Difficulty swallowing
- Change in bowel habits
- Jaundice (yellowing of skin/eyes)
- Persistent bloating or fullness
- Loss of appetite
Diagnosis & Our Approach
Endoscopy, EUS, ERCP, CT, MRI and biopsy — accurate diagnosis and staging before any treatment decision.
Surgeon, oncologist, radiologist and pathologist review every case together.
A tailored plan based on cancer type, stage and your overall health.
From diagnosis through surgery, recovery and long-term follow-up.
Treatment Options
Minimally invasive (key-hole) and open curative surgery, tailored to the tumour.
Systemic therapy before or after surgery to improve cure rates.
Drugs that target specific cancer features for better results.
Harnessing the body's immune system in selected cancers.
Precision radiotherapy where it adds benefit.
Relief from symptoms and dignity at every stage.
Treatments & surgery we offer
Explore the dedicated treatment pages — what each procedure involves, recovery and what to expect with Dr. Avinash Tank.
Liver CancerSurgical and multi-modality treatment of liver tumours — including resection of primary and secondary cancers in a dedicated GI cancer unit.
View treatment
Pancreas CancerComplex pancreatic cancer surgery (including Whipple's) with expert peri-operative care for the best chance of cure.
View treatment
Gallbladder CancerRadical surgery for gallbladder cancer, often found with gallstones — staged and treated by a GI cancer super-specialist.
View treatment
Robotic Colorectal SurgeryRobotic surgery for colon and rectal cancer — superb access for total mesorectal excision in the narrow pelvis, with better nerve preservation (continence and sexual function) and sphincter-saving outcomes.
View treatment
Robotic GI Cancer SurgeryRobot-assisted curative surgery for stomach, oesophagus, pancreas and liver cancers — precise dissection around major vessels with less blood loss, fewer complications and faster recovery than open surgery.
View treatment
Stomach CancerCurative gastrectomy and lymph-node clearance for gastric cancer, with key-hole options in suitable cases.
View treatment
Our Expertise in Digestive Cancer Care
- Super-specialist MCh surgical gastroenterologist with 25+ years of experience
- Key-hole-first approach for faster recovery and smaller scars
- Multidisciplinary tumour-board decision making
- Affiliations with leading hospitals in Ahmedabad
Support & guidance
Latest articles, real cases & stories
Latest Articles
Why Keyhole Surgery Became the Standard for Gallbladder Disease Colon Cancer Screening: Who, When and Why It Saves Lives Metabolic Surgery and Type 2 Diabetes Remission: The Evidence All articlesVisiting consultations near you
Dr. Avinash Tank holds visiting consultations across Gujarat & Rajasthan, with advanced surgery at the main centre, Dwarika Hospital, Ahmedabad.
Frequently asked questions
Warning signs include unexplained weight loss, persistent abdominal pain, blood in the stool, difficulty swallowing, jaundice and a lasting change in bowel habits. Any of these lasting more than 2 weeks deserves a check-up.
Yes — when detected early and treated by an experienced team, many GI cancers are curable, often with key-hole surgery.
Through endoscopy, imaging (CT/MRI), endoscopic ultrasound and biopsy, which together confirm the diagnosis and stage.
Not always — treatment is personalised. Surgery, chemotherapy, targeted therapy, immunotherapy and radiation are used alone or in combination based on your case.
Need expert care?
Get a clear, honest opinion from a super-specialist — same-week appointments with Dr. Avinash Tank.
