Related Experiment Video
Updated: Jun 27, 2026
08:51
Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
Published on: February 19, 2021
Tolosa-Hunt syndrome: MRI appearances
1Department of Radiology, Sultan Qaboos University, Muscat, Oman. rajeevjn@yahoo.com
Journal of Medical Imaging and Radiation Oncology
|November 27, 2008
Summary
Magnetic resonance imaging (MRI) effectively detects inflammatory masses in Tolosa-Hunt syndrome, a condition causing painful ophthalmoplegia. Follow-up MRI confirms treatment response and aids in monitoring relapses.
Area of Science:
- Neurology
- Radiology
- Ophthalmology
Background:
- Tolosa-Hunt syndrome is characterized by painful ophthalmoplegia, often requiring detailed imaging for diagnosis.
- Evaluating the cavernous sinuses and orbits is crucial for identifying the underlying pathology.
Observation:
- Seven patients with Tolosa-Hunt syndrome underwent magnetic resonance imaging (MRI) studies.
- MRI protocols included T2-weighted and fat-saturated T1-weighted sequences with contrast enhancement.
- Focal-enhancing masses within the ipsilateral cavernous sinus were observed in all patients.
Findings:
- MRI demonstrated high sensitivity in detecting inflammatory mass lesions in the cavernous sinus and orbital apex.
- Masses expanded the cavernous sinus, with one case extending to the orbital apex and intraorbitally.
- All patients responded to corticosteroid therapy, with mass resolution confirmed by follow-up MRI in most cases.
Implications:
- MRI is recommended as the initial screening modality for suspected Tolosa-Hunt syndrome.
- Serial MRI studies are valuable for monitoring treatment efficacy and detecting relapses.
- These findings underscore the role of advanced neuroimaging in managing Tolosa-Hunt syndrome.
Related Concept Videos
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
01:27Imaging Studies IV: Magnetic Resonance Imaging
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
01:14Imaging Studies I: CT and MRI
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
01:29Positron Emission Tomography
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
01:21Imaging Studies for Cardiovascular System IV: CMRI
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...