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Related Concept Videos

Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
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...
Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...

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Related Experiment Video

Updated: Jun 26, 2026

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection
09:54

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection

Published on: February 16, 2020

Isolated perihepatic tuberculosis: imaging findings.

H J Kim1, J H Byun, D Y Kim

  • 1Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Songpa-gu, Seoul, Korea.

Clinical Radiology
|December 24, 2008
PubMed
Summary
This summary is machine-generated.

Isolated perihepatic tuberculosis presents as an ovoid, homogeneous lesion on imaging. This review details its characteristic findings on computed tomography (CT) and ultrasonography (US) in patients without other active tuberculosis.

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Last Updated: Jun 26, 2026

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection
09:54

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection

Published on: February 16, 2020

Area of Science:

  • Radiology
  • Infectious Diseases
  • Hepatology

Background:

  • Perihepatic lesions can mimic inflammatory or malignant conditions.
  • Tuberculosis (TB) can present with extrapulmonary manifestations, including isolated perihepatic involvement.
  • Accurate imaging is crucial for differentiating perihepatic tuberculosis from other pathologies.

Purpose of the Study:

  • To characterize the imaging findings of isolated perihepatic tuberculosis.
  • To differentiate perihepatic tuberculosis from other perihepatic lesions based on imaging features.
  • To establish imaging criteria for diagnosing isolated perihepatic tuberculosis.

Main Methods:

  • Retrospective review of six patients with histopathologically proven isolated perihepatic tuberculosis.
  • Analysis of lesion characteristics on computed tomography (CT) and ultrasonography (US).
  • Evaluation of lesion location, size, morphology, number, attenuation/echogenicity, and contrast enhancement.

Main Results:

  • Isolated perihepatic tuberculosis lesions were typically ovoid, homogeneous, and low-attenuating/low-echoic compared to liver parenchyma on CT and US.
  • Lesions were predominantly in the right perihepatic space.
  • Peripheral rim enhancement was noted in a minority of cases on CT.

Conclusions:

  • Isolated perihepatic tuberculosis typically appears as an ovoid, homogeneous, low-attenuating/low-echoic lesion on CT and US.
  • These imaging features can help distinguish it from other perihepatic pathologies.
  • Awareness of these findings aids in the diagnosis of this rare presentation of tuberculosis.