Related Experiment Video
Updated: Feb 8, 2026
10:04
Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates
Published on: September 5, 2017
19.3K
Infected plastic biliary stent identified by FDG PET/CT: A case report
Yeon-Hee Han1, Seong-Hun Kim2, Chang-Seop Lee2
1Department of Nuclear Medicine, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Cyclotron Research Center, Molecular Imaging and Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea.
Medicine
|February 6, 2026
Summary
F-18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) effectively identified infected biliary stents in a patient with recurrent fever. Prompt stent removal and targeted antibiotics resolved the sepsis, highlighting FDG PET/CT
Area of Science:
- Nuclear Medicine
- Radiology
- Infectious Disease
Background:
- Diagnostic challenges in fever of unknown origin, particularly when conventional imaging is inconclusive.
- Indwelling biliary stents can act as a source of persistent sepsis.
- The role of F-18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) in identifying occult infections.
Purpose of the Study:
- To illustrate the diagnostic utility of FDG PET/CT in detecting infected biliary stents.
- To demonstrate the effectiveness of FDG PET/CT in guiding management for recurrent sepsis post-biliary intervention.
Main Methods:
- Case presentation of an 82-year-old woman with recurrent fever and a history of biliary stents.
- Diagnostic workup included FDG PET/CT, endoscopic examination, and microbiological cultures.
- Intervention involved endoscopic stent removal and targeted antibiotic therapy.
Main Results:
- FDG PET/CT revealed focal hypermetabolism at the biliary stent tips, indicative of infection.
- Endoscopy confirmed duodenal papillitis, biofilm formation, and sludge at the stent sites.
- Microbiological cultures identified Escherichia coli and Klebsiella pneumoniae.
Conclusions:
- FDG PET/CT is a valuable tool for diagnosing infected biliary stents in patients with unexplained recurrent fever.
- Early utilization of FDG PET/CT can prevent unnecessary procedures and facilitate timely, targeted interventions.
- Successful treatment involved stent removal and culture-directed antimicrobial therapy, leading to symptom resolution.
Related Concept Videos
00:58Plasticity
3.1K
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
3.1K
01:31Plasticizers
374
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
374
01:21Plastic Behavior
580
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
580
01:14Plastic Deformations
471
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
471
01:19Plastic Deformations
471
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
471
01:24Data Reporting and Recording
5.5K
Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
5.5K