Related Experiment Video
Updated: Sep 19, 2025

qPCR Is a Sensitive and Rapid Method for Detection of Cytomegaloviral DNA in Formalin-fixed, Paraffin-embedded Biopsy Tissue
Published on: July 9, 2014
Computed tomography for the diagnosis of HIV-associated gastro-intestinal histoplasmosis
Domitille Droz-Bartholet1, Lorenzo Garzelli1, Ugo Françoise2
1Department of Medical Imaging, Cayenne Hospital Center, Cayenne, French Guiana; UFR Sciences Médicales et de Santé, Université de Guyane, Cayenne, French Guiana.
Introduction:
Disseminated histoplasmosis is one of the leading opportunistic infections among people living with human immunodeficiency virus (PLHIV) in Latin America. Intestinal involvement is common, but its computed tomography findings have not been properly described. We aimed to provide a computed tomography description of histoplasmosis intestinal involvement.
Patients And Methods:
We performed a retrospective observational study of patients with disseminated histoplasmosis and proven intestinal involvement.
Results:
A total of 18 patients with an available contrast-enhanced abdominal computed tomography (8 women, mean age 44 years) were included. Seventeen had intestinal parietal thickening (94 %), with a mean thickening of 14 mm, unifocal or multifocal, frequently circumferential (71 %). The most commonly affected segments were the cecum and right colon in 13/17 (76 %) of patients each. Adenomegaly was constant, mostly homogeneous.
Conclusion:
These computed tomography features in patients with advanced HIV disease may be key findings for an early diagnosis in the absence of proven histoplasmosis.
Related Concept Videos
Pulmonary Tuberculosis IV
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Histology of the Gastrointestinal (GI) Tract
The mucosa is sometimes called a mucous membrane due to its mucus-secreting features. This membrane is composed of epithelium, which directly interacts with ingested substances, and the lamina propria, a layer...
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies III: Computed Tomography
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...

