How does TB affect the digestive system?

Tuberculosis may involve any part of the gastrointestinal tract, but most ulcerative and hypertrophic types occur in the ileocecal region, where there is a predominance of submucosal lymphatic tissue. The most common features are fever and abdominal pain that is often relieved by defecation or vomiting.

Does TB affect colon?

TB of the colon predominantly affects the cecum and the ascending colon. Ulceration, nodularity, and stricture are the prominent endoscopic findings. Majority of the lesions heal with anti-TB treatment.

Can a chest CT be used to diagnose tuberculosis?

A chest radiograph is typically obtained to evaluate for findings of active disease. Chest CT may be useful in identifying active tuberculosis even if the chest radiograph is negative, although chest CT is not the standard of practice (28).

How are CT images used to diagnose bowel ischemia?

Fig. 2 —Contrast-enhanced CT image of abdomen in 78-year-old man with embolism of superior mesenteric artery. Bowel loops are distended with air and their wall is “paper-thin.” Acute bowel ischemia provides various morphologic and attenuation abnormalities on CT images in the bowel wall, mesenteric vessels, and mesentery.

What does TB look like on a chest X-ray?

Tuberculosis ( TB) is a non-bacterial multisystem infection that often affects the lungs. It may be a primary tuberculous infection, secondary infection or appear as chronic scarring. TB may also be seen on a chest x-ray as lymphadenopathy. This is a summary article; read more in our article on tuberculosis. primary infection

How is acute mesenteric ischemia characterized in CT?

CT findings of acute mesenteric ischemia should be characterized on the basis of the cause. In addition, the severity of bowel ischemia (i.e., superficial mucosal or transmural bowel wall necrosis), the location (i.e., small or large bowel), and the presence and degree of hemorrhage or subsequent superinfections may affect the CT appearance.