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Abdominal tuberculosis.
Tuberculosis has staged a global comeback and forms a dangerous combination with AIDS. The abdomen is one of the common sites of extrapulmonary involvement. Patients with abdominal tuberculosis have a wide range and spectrum of symptoms and signs; the disease is therefore a great mimic. Diagnosis, mainly radiological and supported by endoscopy, is difficult to make and laparotomy is required in a large number of patient. Management involves judicious combination of antitubercular therapy and surgery which may be required to treat complications such as intestinal obstruction and perforation. The disease, though potentially curable, carries a significant morbidity and mortality.
Unexplained weight loss and a palpable abdominal mass in a middle aged woman. Abdominal tuberculosis.
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Progressive neuropsychiatric problems following institution of highly active antiretroviral therapy.
A 31 year old HIV infected woman developed neuropsychiatric problems soon after starting highly active antiretroviral therapy (HAART). Despite modifying and subsequently stopping HAART her condition progressively worsened. Cranial magnetic resonance imaging revealed multiple areas of abnormal signal suggestive of either a vasculitis or demyelination.
Extrapulmonary tuberculosis masking disseminated histoplasmosis in AIDS.
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Tuberculosis of the oesophagus.
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Mycobacterium avium infection in a pygmy goat.
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Tuberculosis of the colon simulating carcinoma.
A case of tuberculosis mimicking carcinoma in the distal colon is reported. The difficulty in diagnosing a solitary tuberculous colonic lesion, a review of the literature, and a differential diagnosis are presented.
Pancreaticoduodenal tuberculosis simulating metastatic ovarian carcinoma.
A patient from Thailand presented with symptoms suggestive of peptic ulceration. Radiology showed an ulcerated duodenal stricture, a pancreaticoduodenal mass and extensive retroperitoneal lymphadenopathy suggestive of metastatic carcinoma. Tuberculosis was diagnosed only at laparotomy. The incidence of tuberculosis is increasing, and alimentary tuberculosis should be considered in patients from populations at risk presenting with obscure abdominal complaints or unexplained radiologic findings.
Tuberculosis of the pancreas presenting as metastatic pancreatic carcinoma. A case report and review of the literature.
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Perforation peritonitis in primary intestinal tuberculosis.
Primary intestinal tuberculosis is unusual in European and North American countries today. Its diagnosis is often surprising and differentiation from inflammatory bowel diseases is difficult. The authors present a rare case of severe stercoral peritonitis caused by multiple intestinal perforations in a patient with primary ileocecal tuberculosis. Initial clinical and laboratory investigations led to the suspicion of inflammatory bowel disease. The subsequent diagnostic workup included colonoscopic examination of the cecal and terminal region of the ileum with multiple biopsies. After the pathologist had assessed the specimen as indicating Crohn's disease, appropriate therapy was initiated. Several days later, however, the patient was readmitted to a surgical intensive care unit with clinical signs of peritonitis and immediately operated on. The final diagnosis from a resection specimen confirmed the diagnosis of primary intestinal tuberculosis. The follow-up was complicated by a subhepatic abscess formation with the necessity for surgical drainage. The patient's recovery was uneventful, she underwent intensive antituberculotic therapy and is asymptomatic at present. Surgeons caring for patients with acute abdomen should be aware of tuberculous perforation peritonitis even in non-risk groups of patients.
Renal amyloidosis secondary to tuberculosis of cecum.
Renal amyloidosis can occur as a primary or secondary, systemic or localized disorder. It is defined as a chronic infiltrative disorder characterized by impaired organ function caused by extracellular insoluble protein fibrils. Although colonic tuberculosis is not uncommon, the occurrence of reactive renal amyloidosis in such patients is not as prevalent. We report a single case of renal amyloidosis in a patient with tuberculosis of the cecum who presented with nephrotic syndrome.
Primary intestinal tuberculosis following renal transplantation.
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Gastric tuberculosis simulating a complicated tumour-like form.
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Immunochemical characterization of saline-extracted antigens of Mycobacterium tuberculosis H37Ra.
The saline extract (SE) of Mycobacterium tuberculosis H37Ra yielded four major fractions on Sephadex G-100, with average molecular weights of 48,000 (fraction I, F I) 32,000 (fraction II, F II), 15,000 (fraction III, F III) and 5,000 (fraction IV, F IV). FI and FII gave single bands on sodium dodecyl sulfate-polyacrylamide gel electrophoresis, showed complete immunological cross-reactivity with each other and were more potent in reacting with antibodies in patients' (tuberculosis) sera than sonicate, SE, purified protein derivative, F III and F IV when tested in a competition enzyme-linked immunosorbent assay.
Cytologic diagnosis of pancreatic tuberculosis in immunocompetent and immunocompromised patients: a report of 2 cases.
BACKGROUND: Pancreatic tuberculosis (PT) is a very rare occurrence in the setting of extrapulmonary tuberculosis. It usually occurs as a complication of miliary tuberculosis in immunodeficient individuals, particularly with HIV infections, but isolated involvement in an immunocompetent patient is extremely rare. Pancreatic involvement by tuberculosis in immunocompromised states, such as AIDS, and isolated involvement in immunocompetent patients require a high index of suspicion. Fine needle aspiration cytology under imaging guidance is highly conclusive. CASES: A patient presented with diabetes mellitus and a pancreatic mass clinically diagnosed as pancreatic carcinoma. A second patient, who was HIV seropositive, presented with generalized lymphadenopathy and a pancreatic mass, clinically diagnosed as lymphoma. These were conclusively diagnosed by fine needle aspiration cytology (FNAC) as PT under imaging guidance. After antituberculous therapy the first patient showed a dramatic improvement, whereas the second died; an autopsy was performed. Because of the atypical presentation of PT in immunocompromised and immunocompetent patients, FNAC can be used as a first-line diagnostic intervention. FNAC under imaging guidance is sensitive, specific, rapid and inexpensive. It resolves the diagnostic dilemma and thus avoids major surgery for a clinically diagnosed neoplasm.
Gastric tuberculosis. Endoscopic cytology as a diagnostic tool.
OBJECTIVE: To highlight the utility of endoscopic brush smears in the diagnosis of gastric tuberculosis in clinically unsuspected cases. STUDY DESIGN: A retrospective analysis of endoscopic brush smears from 210 patients with gastric symptoms. In seven of these patients (3.3%) the possibility of gastric tuberculosis was suggested in Giemsa-stained smears. Biopsy was available in all cases. Ziehl-Neelsen stain to demonstrate tubercle bacilli was used in brush smears and biopsies in seven and three cases, respectively. RESULTS: Endoscopically the sites involved were antrum (two), pylorus (two), pylorus and duodenum (three). One patient had an ulcerative lesion, and six had growths. Granulomas and/or epithelioid cells were seen in brush smears in all cases. Tubercle bacilli could be demonstrated in cytologic smears in four cases. Endoscopic biopsy showed granulomas in five cases and non-specific gastritis in two. Tubercle bacilli could not be demonstrated in any of the biopsy sections. On further clinicoradiologic investigation, two patients were found to be follow-up cases of pulmonary and nodal tuberculosis. Enzyme-linked immunosorbent assay for HIV, done in three cases, was negative. A final diagnosis of primary gastric tuberculosis in five patients and secondary in two was considered. Six patients responded to antituberculosis treatment and showed healing of the lesions on repeat endoscopy after six months of therapy, while one was a recent case with four weeks' follow-up. CONCLUSION: Endoscopic brush cytology is a reliable modality for the diagnosis of gastric tuberculosis.
Diagnostic value of fine needle aspiration biopsy of palpable colonic masses.
OBJECTIVE: To assess the role of fine needle aspiration biopsy (FNAB) in patients with palpable colonic masses. STUDY DESIGN: FNAB was performed on 32 patients with palpable colonic masses before subjecting them to colonoscopic examination. Smears prepared from the material obtained by aspiration biopsy were examined. The results of aspiration biopsy were confirmed by histopathologic examination of the tissue obtained on colonoscopy or surgery or by a salutory response to antituberculous therapy in patients with tuberculosis of the colon. RESULTS: Twenty-nine patients had carcinoma of the colon, and three had ileocecal tuberculosis. Aspiration biopsy could correctly diagnose all the cases with malignancy and two of the three cases with colonic tuberculosis. Colonoscopy could not be performed on two patients with cancer of the colon. However, a barium enema examination revealed evidence of cecal malignancy in both patients. In the two patients diagnosed as having colonic tuberculosis by FNAB, colonoscopic biopsies revealed only nonspecific changes. There were no false positive results or complications of the procedure. CONCLUSION: FNAB is a simple, rapid and accurate method of diagnosing palpable colonic masses.