Can Crohn's disease be seen on a CT scan?

Written by Huang Gang
Gastroenterology
Updated on November 05, 2024
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Crohn's disease cannot be determined solely by CT scans. A CT scan can be used to assess the general situation, which should then be combined with personal clinical symptoms, routine stool tests, and ideally, colonoscopy and blood tests to make an accurate diagnosis. Crohn's disease is an idiopathic disease, currently thought to be related to genetic factors, and inevitably linked to individual immune factors and dietary habits. A definitive diagnosis can be made through colonoscopy and pathological examination. Care should be taken to avoid consuming raw, cold, hard, spicy, and irritating foods.

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What is Crohn's disease?

Crohn's disease is a chronic nonspecific inflammatory disease, characterized by segmental and skip lesions, longitudinal ulcers that are relatively deep, and can affect various parts of the digestive tract from the mouth to the anus, primarily occurring near the end of the ileum and adjacent colon. This disease tends to recur repeatedly, and currently, there are no particularly effective treatment methods. At present, the highest incidence rates are in North America and Northern Europe, and the incidence in China is also showing an increasing trend year by year. The main symptoms include abdominal pain, diarrhea, and weight loss. Generally, this disease is difficult to cure and tends to recur throughout a person's life.

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Does Crohn's disease cause bowel sounds?

Crohn's disease is an inflammatory bowel condition characterized by symptoms such as abdominal pain, diarrhea, intestinal obstruction, intestinal perforation, and rectal bleeding. If diarrhea occurs, there will be noticeable hyperactive bowel sounds, and under such circumstances, it is imperative to use antidiarrheal medications promptly. Dietary adjustments are also important, including eating a moderate amount of vegetables and fruits. The dietary principles should focus on eating small, frequent meals with high nutrition and low fat. During active phases, it's crucial to rest more and stay hydrated, as severe diarrhea can lead to dehydration. Crohn's disease tends to recur frequently, so it is essential to strengthen daily care.

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Is a small intestine ulcer the same as Crohn's disease?

Small intestinal ulcers and Crohn's disease are different. Crohn's disease is an inflammatory bowel disease of unknown cause, commonly occurring in the terminal ileum and right half of the colon. Small intestinal ulcers may be caused by intestinal inflammation and damage to the mucosa, making the ulcers easier to heal, whereas Crohn's disease tends to recur frequently and is not easily cured. Crohn's disease can also affect the joints, skin, liver, and other parts, and may be complicated by acute perforation, bloody stools, intra-abdominal abscesses, and malabsorption syndrome. It is advisable to consult a gastroenterologist and pay attention to adjusting the diet structure, eating meals regularly, and maintaining nutritional balance.

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Differential Diagnosis between Intestinal Tuberculosis and Crohn's Disease

Intestinal tuberculosis often exhibits symptoms of extraintestinal tuberculosis, whereas Crohn's disease generally does not show signs of extraintestinal tuberculosis. Recurrence of intestinal tuberculosis is not common, whereas Crohn's disease has a longer duration and alternates between remission and relapse. Fistulas, abdominal abscesses, and perianal lesions are relatively rare in intestinal tuberculosis, but Crohn's disease may involve fistulas, abdominal masses, and perianal lesions. Tuberculin skin tests may be positive in patients with intestinal tuberculosis, while in Crohn's disease patients, the test may show a weakly positive result. After antituberculosis treatment, symptoms in patients with intestinal tuberculosis can significantly improve, whereas there is no significant improvement in symptoms in Crohn's disease patients following antituberculosis treatment. Furthermore, histopathological examination in patients with intestinal tuberculosis may reveal Mycobacterium tuberculosis and caseous necrosis. In contrast, Crohn's disease patients show negative results for Mycobacterium tuberculosis in pathologic testing and do not exhibit caseous necrosis.

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Can Crohn's disease be inherited by children?

Crohn's disease is an inflammatory bowel condition, and its specific causes are not yet very clear. It may be related to environmental factors, lifestyle factors, dietary factors, and genetic factors, and it occurs more often in males than in females. The prevalence of Crohn's disease is relatively low in China. Typical symptoms of Crohn's disease include abdominal pain, diarrhea, intestinal obstruction, and some patients may experience fever, oral mucosal lesions, and liver abnormalities. The current treatment is mainly medication combined with surgical intervention. During active periods, it is important to rest, consume a low-fat, high-nutrition diet, replenish water and electrolytes timely, and if anemia is present, appropriately supplement with B12 and folic acid. Patients with hypoproteinemia should be given albumin.