Colonic Health: Is Black Tissue in the Colon Dead? - Surgery

Share to:

Could you please provide more details about the issues related to colorectal cancer?


Dear Doctor, if a segment of the colon was removed due to colitis and the surgeon showed me a dark area inside the resected colon, stating it was an intestinal infarction due to poor blood circulation near the spleen, resulting in the dark appearance, and considering I had previously undergone surgery for colon cancer but the tissue analysis this time showed no cancer, I would like to ask: Is the dark tissue necrotic? Was it necessary to remove it?

cc, 20~29 year old female. Ask Date: 2010/06/21

Dr. Ke Fangxu reply Surgery


Hello: In response to your question, since surgery has already been performed to remove the affected tissue, discussing the necessity of the removal at this point is no longer meaningful.
The initial surgery must have had its reasons.
If the reason was ischemic necrosis of the colon, then the resected colonic tissue would not contain cancer cells.
Whether it is indeed necrosis of the colon depends on how the pathology report describes it; sometimes, it is not possible to determine solely by visual inspection.

Reply Date: 2010/06/21

More Info


When it comes to colonic health, the presence of black tissue in the colon can be concerning, especially when it is associated with prior surgeries or conditions like colitis or cancer. Based on your description, it appears that the surgeon identified a section of the colon that was blackened due to poor blood circulation, which is often referred to as "ischemia" or "intestinal infarction." This condition occurs when blood flow to a part of the intestine is reduced or cut off, leading to tissue death (necrosis) in that area.

The fact that your surgeon mentioned this black tissue was due to "colon stroke" indicates that the affected area was likely not receiving adequate blood supply, which can result from various factors, including blood clots, narrowed blood vessels, or other vascular issues. When the blood supply is compromised, the tissue can become necrotic, which is why it may appear black. This necrotic tissue can lead to serious complications, including perforation of the colon, infection, or sepsis, which can be life-threatening.

In your case, the decision to remove the affected segment of the colon was likely made to prevent these potential complications. Even though the tissue was not cancerous, the presence of necrotic tissue poses a significant risk to your overall health. The surgical removal of this tissue is a common and necessary procedure to ensure that the surrounding healthy tissue remains viable and to maintain the overall function of the colon.

It is also reassuring that the pathology report indicated no cancer in the removed tissue. This is a positive outcome, especially considering your history of colorectal cancer. Regular monitoring and follow-up care are essential in your situation, as you have a higher risk for colorectal issues due to your medical history.

In summary, the black tissue in your colon was likely necrotic due to ischemia, and the decision to surgically remove it was appropriate to prevent further complications. It is crucial to maintain regular check-ups with your healthcare provider to monitor your colonic health and address any new symptoms that may arise. If you experience any unusual changes in bowel habits, abdominal pain, or other gastrointestinal symptoms, do not hesitate to seek medical attention. Your health and well-being are paramount, and proactive management is key to preventing further complications.

Similar Q&A

Concerns About Bowel Health: Understanding Symptoms and Risks at 29

I have been experiencing hard stools during bowel movements. A few days ago, I noticed a small amount of blood in my stool. Yesterday, I had thin, black stools, and today, while the stools are no longer black, they are still somewhat thin. I'm worried that the thin stools co...


Dr. Lin Minghui reply Gastroenterology and Hepatology
Hello, experiencing hard stools with blood, some dark in color, occasionally thin and elongated, and sometimes not smooth raises concerns about colorectal cancer. It is advisable to investigate the cause of blood in the stool. Common causes include hemorrhoids, anal fissures, inf...

[Read More] Concerns About Bowel Health: Understanding Symptoms and Risks at 29


Understanding Black Stool: Causes and Concerns for Your Digestive Health

Hello, doctor. This morning after I had a bowel movement, I noticed that my stool was dark in color (mostly black), but not deep black, and there was no blood. The shape was elongated but somewhat scattered. Yesterday afternoon, I ate guava, papaya, and watermelon, and for dinner...


Dr. Cai Anshun reply Gastroenterology and Hepatology
Hello: The color may be due to the digestion of food. If the condition persists, it is important to consider whether there is gastrointestinal bleeding, and it may be necessary to consult a gastroenterologist. Changhua Hospital cares about your health. Dr. Tsai An-shun.

[Read More] Understanding Black Stool: Causes and Concerns for Your Digestive Health


Understanding Black Stool: Causes and Concerns for Your Health

Hello Doctor, I apologize for bothering you, but I would like to ask about a situation I've been experiencing over the past week or two. My stool has turned black and is mostly in a flaky, oatmeal-like consistency (floating on the surface of the water). When I wipe, the toil...


Dr. Cai Anshun reply Gastroenterology and Hepatology
Hello: It may be more related to food, so I recommend testing the black parts of your stool to check for any signs of occult blood. Changhua Hospital cares about your health. Dr. Tsai An-Shun.

[Read More] Understanding Black Stool: Causes and Concerns for Your Health


Understanding Black Mucus in Stool: Causes and Concerns for Your Health

Hello Doctor: Since last year, I have noticed black mucus in my stool that is not mixed with the feces. However, the explanations I found online only mention "entirely black stools" or "blood separated from stool," and there is no explanation for "black m...


Dr. Cai Anshun reply Gastroenterology and Hepatology
Hello: It is recommended to consult a gastroenterologist, who will determine whether to arrange for a fecal occult blood test or further colonoscopy. Changhua Hospital cares about your health. Dr. Tsai An-Shun.

[Read More] Understanding Black Mucus in Stool: Causes and Concerns for Your Health


Related FAQ

Colorectal

(Surgery)

Fecal Occult Blood

(Surgery)

Gastrointestinal Tract

(Surgery)

Colon Polyps

(Gastroenterology and Hepatology)

Mucus In Stool

(Surgery)

Anal Fissure

(Gastroenterology and Hepatology)

Foreign Body Sensation In The Anus

(Gastroenterology and Hepatology)

Bowel Movements

(Surgery)

Bowel Movement

(Nutrition)

Fecal Occult Blood

(Gastroenterology and Hepatology)