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Background: Colloid cyst (CC) is a rare and benign cyst found in the third ventricle near the foramen of Monro. Although the role of surgical resection is well established in symptomatic large-sized CC, it remains debatable whether surgical removal of CC with no symptoms or minimal symptoms is necessary.
Case Presentation: A 49-year-old male patient visited our institute for incidentally detected intracranial mass. MRI demonstrated typical, 12 mm-sized CC located in the third ventricle. It was noticed that the cyst spontaneously decreased in size from 12 mm to 4 mm on MRI at 18 months after the first visit.
Conclusion: Although spontaneous regression is a very rare phenomenon in CC, regular imaging study and frequent neurologic examination can be an alternative option for well-selected, asymptomatic cases.
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http://dx.doi.org/10.1186/s12883-022-02933-6 | DOI Listing |
J Cardiovasc Electrophysiol
September 2025
Department of Cardiology, Second Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China.
Background And Aims: Ablation for premature ventricular complexes (PVCs) originating from the right ventricular inflow tract (RVIT) is challenging. Few studies have identified the correlation between right ventricular false tendons (RVFTs) and RVIT PVCs. This study aimed to verify RVFTs as arrhythmogenic and electro-anatomical substrates for PVCs, and propose an enlightening mapping and ablation protocol to improve operative efficacy.
View Article and Find Full Text PDFNeurol Med Chir (Tokyo)
September 2025
Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine.
Surgical treatment for tumors located at the third ventricle and/or hypothalamic regions is significantly challenging due to the surrounding crucial neural and vascular structures. In 2013, the transventricular preforniceal approach was reported for exophytic chiasmatic/hypothalamic astrocytomas extending into the anterior third ventricle. Although this approach may be safe and effective for selected patients, this approach can only be applied when the space between the anterior commissure and the fornix is stretched by the tumor.
View Article and Find Full Text PDFWorld Neurosurg
September 2025
Division of Neurosurgery, Department of Neurological Sciences, Università degli Studi di Napoli Federico II, Naples, Italy.
We present a case of third ventricle colloid cyst surgical resection using a tubular-based endoscopic transcortical approach. Third ventricle colloid are rare benign lesions typically found in the anterolateral part of the third ventricle, close to the foramen of Monro. Several surgical approaches have been employed for their management.
View Article and Find Full Text PDFAnn Anat
September 2025
Department of Normal and Clinical Anatomy, University of Rzeszow, Medical College, Poland. Electronic address:
The interthalamic adhesion, or massa intermedia, is a midline bridge of neural tissue connecting the thalami across the third ventricle and usually containing the nucleus reuniens. It is important radiologically and neurosurgically: accessing the third ventricle or structures through the third ventricle, endoscopic surgery at third ventricle. We aim to consolidate current knowledge on the interthalamic adhesion, focusing on its morphology, nomenclature, development, histology, connections and anatomical variations to clarify longstanding inconsistencies.
View Article and Find Full Text PDFClin Exp Metastasis
September 2025
Department of Neurosurgery, Warren Alpert Medical School of Brown University, 593 Eddy Street - APC 6, Providence, RI, 02903, USA.
Significant variability exists in the use of corticosteroids for treating adverse radiation effects (ARE) after stereotactic radiosurgery (SRS) of brain metastasis (BM). Here, we determine the diagnostic utility of a quadrant-based, visual assessment of magnetic resonance (MR) FLAIR as an imaging biomarker for steroid-dependent ARE. FLAIR was assessed at four axial levels along the rostral-caudal axis of the cerebrum, defined by standard landmarks of superior temporal line, third ventricle, temporal horn, and fourth ventricle.
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