Benign colon tumors are common growths that occur in the lining of the colon. Fortunately, most of these tumors are non-cancerous, and in most cases, benign colon tumors do not cause any noticeable symptoms, which makes early detection of them extremely important. In this article, we will discuss the most prominent symptoms of benign colon tumor, and the most important diagnostic methods are periodic examinations to detect and manage these tumors at Al Mousa Specialist Hospital.
Symptoms of colon benign tumor
In most cases, the symptoms of colon benign tumor are not noticeable, especially in the case of small tumors, and this is the main reason for the importance of periodic colon examinations.
- Bleeding from the rectum. Bright red blood may be observed in the stool or on the toilet paper. The bleeding may be slight or obvious, and it is one of the clearest symptoms of a benign colon tumor.
- Changes in bowel habits, including persistent or alternating constipation or diarrhea, or a change in stool consistency.
- Abdominal pain is a rare symptom of benign colon tumor, but some may feel discomfort or cramps in the abdomen.
- Iron deficiency anemia is the result of chronic, imperceptible bleeding associated with a large tumor. Symptoms of anemia appear, such as fatigue, weakness, and shortness of breath.
- The presence of mucous secretions in the stool.
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The difference between the symptoms of colon tumor and irritable bowel syndrome
The main difference between the symptoms of colon adenoma and irritable bowel syndrome is the nature of the condition and the development of symptoms. Colon adenoma is the growth of non-cancerous cells in the lining of the colon, while irritable bowel syndrome is a chronic functional disorder.
The most important points of comparison between the symptoms of benign colon tumor and irritable bowel syndrome include the following:
- The presence of blood in the stool or rectal bleeding, which is a more common symptom in cases of colon tumor and is rarely a symptom of irritable bowel syndrome. There may be white mucus, but not blood.
- Unexplained weight loss, a sign of a large colon adenoma or cancer.
- Timing of symptoms and their relationship to bowel movement: Whereas in the case of irritable bowel syndrome, abdominal pain and bowel changes are often linked to bowel movement, this connection is less clear in the case of benign colon tumor.
- The nature of the symptoms, as the symptoms of irritable bowel syndrome tend to be chronic and fluctuating and are affected by factors such as diet, stress, and tension, while the symptoms of benign colon tumor are often more constant and may indicate a structural problem.
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How are the symptoms of colon benign tumor diagnosed?
Since symptoms of colon benign tumors often do not appear, their diagnosis is usually made through routine screening examinations of the colon or when examinations are performed for other reasons related to the digestive system. The main methods for diagnosing benign colon tumors at Al Mousa Specialist Hospital include the following:
- Colonoscopy
It is the most common and effective procedure for diagnosing benign colon tumors. The procedure involves inserting an endoscope, which is a long flexible tube equipped with a small video camera, through the anus and into the colon, allowing the doctor to see the entire lining of the colon on a screen, and identify any tumors or abnormal growths.
During the colonoscopy procedure, samples or biopsies can be taken from any tumors or suspicious areas to examine them under a microscope to determine whether they are benign or cancerous. Most benign colon tumors can also be removed during the colonoscopy using special tools passed through the endoscope.
- Flexible sigmoid colonoscopy
It is similar to a colonoscopy, but it only examines the lower part of the colon, and is sufficient to detect some tumors in this area, but it does not provide a view of the entire colon.
- Computed tomography of the colon
CT scans are used to create three-dimensional images of the colon and detect the presence of some tumors. Before the procedure, the colon must be cleaned and a small tube must be inserted to inflate the colon with air.
- Stool immunochemical test and stool occult blood test
These tests are primarily used to detect colon cancer, as they look for occult blood in the stool, which may be a sign of benign or cancerous tumors or other conditions.
If the test result is positive, the doctor will often recommend a colonoscopy to determine the source of the bleeding.
- Stool DNA test
This test looks for abnormal DNA markers that indicate colon polyps or colon cancer, and if the result is positive, the doctor will often recommend a colonoscopy.
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Types of benign colon tumors
There are several types of benign colon tumors that differ among themselves in their microscopic characteristics and their potential to transform into cancerous tumors. The main types of benign colon tumors include the following:
- Adenomas
It is a common type of benign colon tumor. It is considered a real tumor that over time has the ability to develop into cancer. It contains three main types, which are as follows:
- A tubular polyp, usually small and with a relatively low risk of turning into cancer, is a common colon adenoma.
- Villous tumor, often flat and spreading, although uncommon, carries a higher risk of turning into cancer.
- Villous tubuloma, has the characteristics of both a tubuloma and a villous tumor and carries an average risk of turning into cancer.
- Serrated tumors
These types of tumors are characterized by a serrated or saw-toothed appearance under the microscope. They include several subtypes that differ in their probability of turning into cancer, such as:
- Hyperplastic tumors, which are a very common type and are usually small and located in the lower part of the colon, are considered one of the types with a very low risk of turning into cancer.
- Sessile serrated polyps, which are often flat and difficult to detect during colonoscopy, are commonly found in the upper part of the colon, and have the potential to transform into colon cancer, especially if they are large or exhibit certain characteristics.
- Classic serrated adenomas, an uncommon type, are often located in the lower part of the colon, and also have the potential to turn into cancer.
- Non-neoplastic tumors
* These tumors are not true tumors and do not turn into cancer. They include:
- Inflammatory tumors, which occur in response to chronic inflammation in the colon, as in inflammatory bowel disease.
- Hamartomas, which are abnormal growths of normal tissue in the colon, include juvenile tumors that may be associated with certain genetic syndromes.
- Lipomas are fatty tumors that grow in the submucosal layer of the colon wall.
- Lymphomas are collections of lymphocytes.
It is worth noting that determining the type of benign colon tumor during microscopic examination helps the doctor assess the risk of it turning into cancer and determine the appropriate follow-up plan.
اسئلة شائعة
When do colon cancer symptoms begin to appear?
In most cases, no symptoms of colon cancer appear in the early stages, which makes early detection through periodic examinations such as colonoscopy very necessary.
When symptoms begin to appear, they often depend on the size of the tumor and its location in the colon, and symptoms may develop gradually and vary from person to person.
What is the size of a dangerous tumor in the colon?
There is no specific size that makes a colon polyp definitively dangerous in terms of actually being cancerous, but the size of a colon polyp is an important factor in assessing the risk of it being cancerous or developing into cancer over time.
In general, tumor size is associated with the risk of developing a malignant tumor, as very small tumors less than 5 mm have a low risk of being cancerous, and studies show that the vast majority of these tumors rarely develop into colorectal cancer.
As the size of the tumor increases, the risk of it being cancerous increases, and some research indicates that the incidence of cancer in tumors larger than 2 cm can range between 30% and 50%.
Does a colon cancer patient feel hungry?
Yes, in general, a colon cancer patient can feel hungry. However, there are factors related to the cancer and its treatment that affect the patient’s appetite and ability to eat, which may lead to loss of appetite in many cases.
The reasons why a colon cancer patient may suffer from anorexia include:
- Tumor obstruction, where a growing tumor in the colon can partially or completely block the passage of food, leading to feelings of fullness, bloating, nausea, and decreased appetite.
- Metabolic changes, where cancer cells can release substances that affect the body’s metabolism and affect hunger signals.
- Nausea and vomiting, as a result of the tumor itself or cancer treatments such as chemotherapy and radiation, which greatly reduces appetite.
- Changes in the sense of taste and smell, as a result of chemotherapy and sometimes the cancer itself, which make food less attractive.
- Psychological factors such as anxiety, depression, and stress associated with a cancer diagnosis.
In conclusion, periodic examination and follow-up are the cornerstone of detecting benign colon tumors, as in most cases the symptoms of benign colon tumors are not clear, but despite the rare occurrence of symptoms, awareness of the possible signs, even if they are minor, has an important role in early detection and timely intervention.
In this context, Al Mousa Specialist Hospital in Egypt stands out as a leading medical institution committed to providing the highest levels of health care in the field of digestive system diseases, as the hospital has a team of specialized doctors with experience and high competence in diagnosing and treating various colon diseases, including benign and malignant colon tumors, thanks to the latest diagnostic technologies.
Al Mousa Specialist Hospital also provides the distinguished care you need to maintain the health of your colon and ensure your safety. Do not hesitate to contact the hospital on the numbers listed on the website to book an appointment and obtain appropriate advice.
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