Abstract
Forty six patients of fever of unknown origin in Service Hospitals who met the standard criteria were studied between 1989 and 1997. Infectious diseases contributed 21 patients (45.65%) of which 13 (28.26%) were diagnosed to have tuberculosis. Eight patients each (17.39%) of malignancies and collagen vascular diseases were seen, solid tumours were found in 5 patients. One (2.17%) patient had intrabdominal abscess. No diagnosis was made in 4 (8.69%) patients. The pattern and height of fever bore no correlation to aetiology. Serially repeated radiograph of chest was the most contributory investigation giving diagnostic information in 41.3%. Tissue/body fluid biopsy and cytology, serology, ultrasonography, computerised tomography and laparotomy were other useful investigations.
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