Monday, May 9, 2011

Intestinal tuberculosis is significantly increasing in developed countries with HIV


INTESTINAL TUBERCULOSIS Is a Major Health Problem in Many Underdeveloped Countries
                                           
                                                       BUT
 
A Recent Significantly Increase In Developed Countries In Association With HIV Infection
 
 
TUBERCULOSIS OF INTESTINE

Some bacterial infections are surgically  important include INTESTINAL TUBERCULOSIS usually seen in the uk as ileocecal tuberculosis and present with thickening and narrowing of the terminal ileum.It may be indistinguishable from crohn's disease on naked eye examinaton.although pale tubercle may be seen on the serosa in tuberculosis.Complications include adhesive obstruction ,perforation and malabsorption due to widespread mucosal involvement or lymphatic blockage.
 
 INTESTINAL TUBERCULOSIS is a field health problem in some underdeveloped countries. A recent momentous increase has occurred in matured countries, especially in connexion with HIV infection. Autopsies of patients with pulmonary TB before the epoch of effective treatment demonstrated viscus involvement in 55-90% of mortal cases. The previously noted regular connexion between pulmonary TB and viscus TB no longer prevails, and only a minority of patients (<50%) with abdominal TB now hit deviant dresser radiographic findings. However, approximately 20-25% of patients with GI TB hit pulmonary TB. Any conception of the GI system haw be infected, although the ileum and colon are common sites.

Pathologically GI TB is characterized by inflammation and fibrosis of the bowel surround and the regional lymph nodes. Mucosal ulceration results from necrosis of Peyer patches, lymph follicles, and vascular thrombosis. At this initiate of the disease, the changes are reversible and healing without scarring is possible. As the disease progresses, the ulceration becomes confluent, and comprehensive fibrosis leads to bowel surround thickening, fibrosis, and pseudotumoral mass lesions. Strictures and fistulae formation may occur.
 
We can categarize Intesinal Tuberculosis into Three TYPES on gross pathologic examination

ULCERATIVE modify of TB is seen in approximately 60% of patients. Multiple ostensible ulcers are largely confined to the epithelial surface. This is considered a highly active modify of the disease, with the daylong axis of the ulcers rectangular to the daylong axis of the bowel.
HYPERTROPHIC modify is seen in approximately 10% of patients and consists of thickening of the bowel wall with scarring; fibrosis; and a rigid, masslike appearance that mimics that of a carcinoma.
ULCEROHYPERTROPHIC modify is a subtype seen in 30% of patients. These patients hit a compounding of features of the ulcerative and hypertrophic forms.

 Clinical features  of viscus TB include abdominal pain, weight loss, anemia, and feverishness with night sweats. Patients may present with symptoms of obstruction, correct iliac fossa pain, or a palpable mass in the correct iliac fossa. Hemorrhage and perforation are constituted complications
 of viscus TB, although free perforation is less frequent than in doc disease.  The diagnosis of purging tuberculosis requires a broad index of suspicion. In cases where the information available does not reveal a definite differentiation between colonic tuberculosis and Crohn's disease.
 Intestinal tuberculosis is a thin disease in western countries, affecting mainly immigrants and immunocompromised patients. Intestinal tuberculosis is a diagnostic challenge, especially when active pulmonary infection is absent. It may mimic many other abdominal diseases.

The most common place of GI TB is the ileocecal region, if the area can be reached with a flexible endoscope. A rapid diagnosis can be achieved if smudge or culture results are positive or if caseating granulomas are seen in biopsy samples. In countries where GI TB is endemic, a therapeutic trial of antituberculosis treatment haw be justified if the clinical picture is compatible with TB.

 TREARMENT OF INTESTINAL TUBERCULOSIS
 
A course of chemotherapy
Surgery is required in cases of complicated obstruction in HYPERPLASTIC TUBERCULOSIS - Right hemicolectomy with removal of diseased segment of ileum or defunctioning ileocolostomy .
Surgery is required  in cases of Stricture causing intestinal obstruction or in perforation in ULCERATIVE TUBERCULOSIS


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