The silent cancer: Why appendix cancer is often diagnosed too late

There is no routine screening programme that can identify every appendix cancer before symptoms develop. It depends on a combination of operative findings, imaging and pathological examinations.There is no routine screening programme that can identify every appendix cancer before symptoms develop. (Getty Images)Cancer is often the last thought that comes to someone’s mind when they feel pain in any part of their body or there is a sense of discomfort. They delay diagnosis and eventually treat it. In the case of appendiceal tumours, it is the same. People end up associating the appendix with appendicitis, thereby failing to recognise the symptoms.Appendix cancer is not so common, and this is exactly the reason why it becomes difficult to recognise. There are no typical symptoms that one experiences which will help them diagnose it earlier on. Some patients may not have any symptoms, while others may complain about abdominal pain, nausea or bloating or might experience a change in their bowel habits.The appendix is a small pouch which is attached to the large intestine. It is thus common for tumours to develop in the region. However, they are varied in nature. Neuroendocrine tumours, mucinous neoplasms and adenocarcinomas are some of the most common ones, which have different behaviours, extent and treatment options.MORE THAN REGULAR APPENDICITISSymptoms such as nausea, pain and fever is common with appendiceal tumours. If the pain is on the lower right abdomen, one can detect appendicitis as a reasonable diagnosis. An appendiceal tumour can also sometimes obstruct the opening of the appendix and cause inflammation. Thus, clinically, they look very similar to appendicitis. There are also neuroendocrine tumours of the appendix that produce few or no symptoms. Some are found only when the appendix removed during an appendectomy is examined under a microscope. The patient may have gone to hospital expecting to be treated for appendicitis and left with an entirely different diagnosis.That kind of finding is not necessarily the result of something being missed beforehand. When two conditions can produce similar symptoms, the common one will naturally be considered first. The important question is what happens after that.SYMPTOMS DO NOT ALWAYS RAISE SUSPICIONSSometimes, the symptoms of appendix cancer cannot be understood right away. Bloating, discomfort and feeling full right after eating small meals can also mean that the abdomen has become enlarged.These symptoms are easy to explain away. Bloating may be blamed on food. Indigestion may be treated with medication from a pharmacy. Instead of worrying about common complaints, if one experiences a pain or symptom which progressively becomes worse, then they should immediately get it evaluated and treated.PATHOLOGY GIVES THE RIGHT ANSWEROne of the reasons appendix cancers are unusual is that the diagnosis can come after surgery rather than before it. When an appendix is removed, it may be sent to a pathology laboratory for examination. A tumour that was not suspected clinically can then be identified in the specimen. This happens with some small neuroendocrine tumours. They may be too small to produce any particular symptoms and may have nothing to do with why the patient initially required surgery.In the case of mucin-producing appendiceal tumours, they can release mucin into the abdominal cavity, which leads to pseudomyxoma peritonei. The discovery of an appendiceal tumour, therefore, cannot be treated as simply another line on a pathology report. It is determined by its size, characteristics, and whether there has been any spread.KNOWING WHEN A CASE NEEDS ANOTHER LOOKThere is no routine screening programme that can identify every appendix cancer before symptoms develop. It depends on a combination of operative findings, imaging and pathological examinations.For doctors, extensive investigations does not mean testing without improving care. It means paying attention when something does not fit.Perhaps the symptoms keep returning. Perhaps an imaging scan shows an unusual abnormality around the appendix. Perhaps the appendix looks different from what was expected during surgery. Or perhaps a pathology report following an appendectomy reveals a tumour. Any of these situations may warrant further evaluation.Because appendiceal cancers are uncommon and varied, management may involve surgeons, pathologists, medical oncologists, radiologists and other specialists depending on the individual case. The treatment cannot be decided simply by knowing that the word “cancer” appears on the report.DON’T IGNORE THE SYMPTOMSPatients also play an important role in recognizing when an abdominal issue should be consulted. However, it doesn’t always mean that one has to think of the worst – Cancer.Abdominal pain can be due to a number of reasons. If a patient notices that their symptoms are not settling in and its recurring, they must visit their specialist and get an investigation done. Relying heavily on over-the-counter medication may only increase the symptoms, and cause delay in treating it.If after an appendectomy, a pathology report identifies an unexpected tumour, patients must immediately visit their doctor.THE FIRST DIAGNOSIS MAY NOT ALWAYS BE THE FINAL ANSWERAppendix cancer is likely to remain a rare cancer. That cannot be changed simply by increasing awareness. What can change is the likelihood of recognising an unusual case when it is presented.A patient may initially have what appears to be appendicitis. If, during a clinical process, symptoms persist, or the histopathology report identifies that the tumour was malignant, it is imperative for the patient to follow up on his treatment plan.Appendix cancer does not have one typical presentation, and not every patient gets diagnosed early. Thus, it is very important for individuals to realise that if they feel abdominal pain is recurrent or the symptoms are not improving, they must without delay get themselves checked with a specialist.- EndsPublished By: Chaitanya DhawanPublished On: Aug 26, 2026 15:51 IST