Objective This metanalysis aimed to evaluate the sensitivity and specificity of computed tomography colonography in colorectal polyp detection. Methods A literature search was performed in the PubMed and Web of Science databases. Results A total of 1,872 patients (males 57.2%, females 42.8%) aged 49 to 82 years old (mean age 59.7 ± 5.3 years) were included in this metanalysis. The estimated sensitivity of computed tomography colonography was 88.4% (46.3–95.7%, coefficient of variation [CV] = 28.5%) and the estimated specificity was 73.6% (47.4–100.0%, CV = 37.5%). For lesions up to 9 mm, the sensitivity was 82.5% (62.0–99.9%, CV = 25.1%) and the specificity was 79.2% (32.0–98.0%, CV = 22.9%). For lesions > 9 mm, the sensitivity was 90.2% (64.0–100.0%, CV = 7.4%) and the specificity was 94.7% (80.0–100.0%, CV = 6.2%). No statistically significant differences in sensitivity according to the size of the lesion were found (p = 0.0958); however, the specificity was higher for lesions > 9 mm (p < 0.0001). Conclusions Most of the studies analyzed in the present work were conducted before 2010, which is about a decade after computed tomography colonography started being indicated as a screening method by European and American guidelines. Therefore, more studies aimed at analyzing the technique after further technological advancements are necessary, which could lead to the development of more modern devices.
Introduction:Intestinal tuberculosis is an uncommon form of extrapulmonary presentation of the disease. Some groups of individuals are at greater risk of developing this pathology, and high suspicion must be maintained based on epidemiological risk factors associated with symptoms and complementary tests with a focus on early treatment. Goal: To report a case of intestinal tuberculosis and its diagnostic difficulty. Case description: This is a 62-year-old man, initially presenting with abdominal pain and weight loss, being diagnosed with human immunodeficiency virus infection. He evolved with diarrhea and hematochezia, which led to a lower digestive endoscopy. Initial findings compatible with cytomegalovirus infection, however, without improvement after treatment and in the control exam, it showed a change in the histopathological characteristic favoring the diagnosis of intestinal tuberculosis. Conclusion:The heterogeneity of the clinical presentation requires a high degree of suspicion combined with epidemiological risk factors for early diagnosis and treatment.
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