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Updated: Jul 3, 2026
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Functional Magnetic Resonance Imaging (fMRI) of the Visual Cortex with Wide-View Retinotopic Stimulation
Published on: December 8, 2023
Fluctuating visual field defects in Rathke's cleft cysts: MRI analysis
1Department of Neurological Surgery, Chiba University, Chibashi, Japan 260.
Summary
Fluctuating visual field defects in patients with Rathke's cleft cysts can spontaneously resolve and recur. This study highlights cyst size changes, previously unknown, and suggests closer MRI monitoring for specific cyst types.
Area of Science:
- Neurology
- Radiology
- Ophthalmology
Background:
- Rathke's cleft cysts are pituitary region tumors.
- Visual field defects are a known complication.
- Fluctuating symptoms and cyst size changes are not well-documented.
Purpose of the Study:
- To report fluctuating visual field defects in Rathke's cleft cyst patients.
- To investigate the relationship between cyst size changes and visual symptoms.
- To explore potential mechanisms for cyst size fluctuation.
Main Methods:
- Retrospective analysis of 11 patients with Rathke's cleft cysts.
- Clinical follow-up for visual symptoms.
- Magnetic resonance imaging (MRI) to assess cyst size and signal intensity.
Main Results:
- Three patients experienced transient visual field defects.
- Cyst size changes correlated with symptom fluctuations in some cases.
- MRI revealed cyst size changes, with T1-weighted high intensities noted in one case.
Conclusions:
- Fluctuating visual field defects and cyst size changes are previously unrecognized aspects of Rathke's cleft cysts.
- Cyst enlargement may be due to hemorrhage or fluid imbalance.
- Patients with iso- or high-intensity cysts on T1-weighted MRI require closer observation.
