If you have severe abdominal pain with vomiting and cannot pass wind or stool, seek emergency care now. Bowel obstruction is an emergency. Also seek urgent care for heavy rectal bleeding, or fever during chemotherapy.
Cancer of the large bowel. Colon and rectal cancers are frequently discussed together but managed quite differently, and confusing the two leads to the wrong treatment sequence.
The most consequential decision in rectal cancer happens before any operation: whether to give radiotherapy first. Getting that wrong is difficult to correct afterwards, which is why the pelvic MRI matters so much.
Most colorectal cancers begin as a polyp on the bowel lining that gradually becomes malignant over years. This is why screening works — removing polyps prevents cancer, and detecting cancer early makes it far more treatable.
The distinction between colon and rectum is anatomical and matters enormously. The colon lies free within the abdomen, so a surgeon can take a generous margin around a tumour. The rectum sits in the narrow confines of the pelvis, surrounded by structures that cannot be removed, which makes clearance harder and recurrence more likely if it is not planned carefully.
That is the reason rectal cancer is often treated with radiotherapy, sometimes with chemotherapy, before surgery — to shrink the tumour and pull it away from the surrounding tissue plane. Colon cancer, by contrast, is generally operated on first, with chemotherapy afterwards if the pathology indicates it.
A pelvic MRI is what tells the team which category a rectal tumour falls into, and whether the plane of clearance is threatened. Planning rectal cancer surgery without it is planning blind.
The MRI determines whether the tumour threatens the plane the surgeon must dissect along, and therefore whether radiotherapy should be given before the operation. That decision cannot be revisited once the rectum has been removed. If surgery is being proposed without a pelvic MRI, ask why — and send us the reports before you consent.
Colonoscopy makes the diagnosis; imaging decides the sequence of treatment.
Colorectal cancer that has spread to the liver can still sometimes be treated with the intention of cure, by removing or ablating the liver deposits alongside the bowel tumour, usually with chemotherapy. This requires assessment by a liver surgeon, and it is frequently not offered where that expertise is unavailable. If you have been told liver spread means nothing can be done, send us the CT and MRI before accepting that.
The sequence differs between colon and rectal cancer, and getting the sequence right matters more than any single component.
The affected segment of colon is removed with its lymph node supply, usually laparoscopically with a rapid recovery and rarely requiring a stoma. Chemotherapy afterwards depends on the pathology — particularly whether lymph nodes are involved — and can usually be given at home once the protocol is set.
Where the MRI shows the tumour threatening the surgical plane or involving nodes, radiotherapy — often with chemotherapy — is given before surgery to shrink it and improve clearance. A small number of patients respond so completely that surgery may be avoided altogether under close surveillance, though this remains a specialist decision.
For rectal cancer, total mesorectal excision removes the rectum within its surrounding envelope, and this technique is the strongest determinant of local control. Where the join is low in the pelvis, a temporary stoma protects it while it heals and is usually reversed after two to three months. A permanent stoma is needed only when the sphincter itself must be removed.
Chemotherapy combined with targeted antibody therapy, chosen according to RAS and BRAF status. Where spread is limited to the liver or lungs and is resectable, surgery to remove it alongside the primary tumour can still offer long-term survival. Immunotherapy is highly effective in the minority of tumours showing microsatellite instability.
This determines the entire sequence. Rectal tumours need the pelvic MRI before any decision; colon tumours generally go to surgery first.
A threatened circumferential margin is the main indication for radiotherapy before surgery, and it is invisible without the scan.
RAS, BRAF and microsatellite instability determine which targeted drugs and whether immunotherapy will work. Testing before starting drug treatment in metastatic disease is standard.
If you have been told a permanent stoma is unavoidable, that is worth a second opinion. Sphincter preservation is possible more often than many patients are told, particularly after radiotherapy has shrunk a low tumour.
An obstructing tumour needs treatment where you are — sometimes a stent or a stoma to relieve the obstruction — before any planned surgery elsewhere can be considered.
Photographs taken on your phone are fine. Reports in Arabic, Russian or Bengali are fine — we translate them ourselves.
Usually not. Most colon cancer operations require no stoma at all. In rectal cancer a temporary stoma is often used to protect a low join and is typically reversed after two to three months. A permanent stoma is needed only when the tumour involves the anal sphincter itself. If you have been told a permanent stoma is unavoidable, it is worth a second opinion.
Because it shows whether the tumour threatens the plane the surgeon must dissect along, which determines whether radiotherapy should be given first. That decision cannot be undone once the operation has been performed. Rectal cancer surgery planned without a pelvic MRI is planned without the information that matters most.
Very possibly yes. Colorectal cancer with liver spread is one of the situations where surgery to remove the metastases, combined with chemotherapy, can still achieve long-term survival and sometimes cure. It requires assessment by a liver surgeon. Send the scans before accepting that nothing can be done.
It depends on the final pathology, particularly whether lymph nodes contain cancer and whether there were other high-risk features. Not everyone needs it. Where it is indicated, most standard regimens can be given at a hospital near your home once the protocol is set, which we will write out clearly for your local team.
If you were diagnosed young, or there is a strong family history, yes — and testing for Lynch syndrome may be indicated, which is checked on the tumour with microsatellite instability testing. Where it is present, first-degree relatives should have colonoscopy screening from an earlier age.
In most cases, yes, including for rectal cancer in experienced hands. Keyhole surgery means less pain and faster recovery with equivalent cancer outcomes. The important thing is that the quality of the cancer operation is not compromised for the approach — ask the surgeon how many they perform each year.
Send the colonoscopy report, the biopsy pathology and the CT. For rectal cancer, the pelvic MRI is essential and we will ask for it if it has not been done.
Your reports go directly to our medical team. We do not share your records with hospitals until you tell us to.
WhatsApp +91 83035 86344 · Phone +91 83035 86344 · Email tibhind@gmail.com
Coordinators available 9:00–20:00 IST. We speak Arabic, English, Russian and Bengali.