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Located between two peduncles, especially the cerebral peduncles of the brain.
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Axial T1WI reveals hypointensity in subcortical white matter and corona radiata of left frontoparietal lobes, Axial T2WI shows hyperintensity in the affected regions, DWI shows restricted diffusion with low ADC values(not shown here), Axial post-contrast T1 FS images reveal gyriform cortical enhancement in the frontoparietal lobes and thickened meningeal enhancement in suprasellar cistern, interpeduncular cistern & bilateral Sylvian fissure cisterns, TOF Angio reveals narrowing in proximal segment of left MCA.
The supraorbital keyhole approach effectively exposes the frontal lobe base, anterior clinoid process, canalis opticus, olfactory sulcus, olfactory tract, optic nerve, optic chiasm, oculomotor nerve, anterior communicating artery, anterior cerebral artery A1 segment, pituitary stalk, diaphragma sellae, dorsum sellae, posterior clinoid process, basilar artery apex, posterior cerebral artery P1 segment, superior cerebellar artery proximal, front upper pontine and interpeduncular cistern, anteromedial temporal lobe, internal carotid, middle cerebral artery (M1, M2 segment, and part of M3 segment), anterior choroidal artery, posterior communicating artery; and contralateral carotid artery medial surface, anterior cerebral artery A1 and A2 proximal, middle cerebral artery M1 and M2 proximal.
1,2] JS is an autosomal recessive neurodevelopmental disorder, characterized by molar tooth malformation, a complex brainstem malformation that reflects aplasia and marked hypoplasia of cerebellar vermis, thickened and elongated superior cerebellar peduncles, and deepened interpeduncular fossa that is apparent on axial magnetic resonance imaging (MRI) at the midbrain-hindbrain junction.
After preoperative preparation, endoscopic ventriculocisternostomy was performed, so that communication between third ventricle and interpeduncular cistern was created.
En la RM se evidencia minimo realce en la cisterna interpeduncular y en las meninges del aspecto anterior del puente.
It also produced a compressive effect to the posterior side of the brainstem, occupying and broadening the interpeduncular cisterna.
However, this epidermoid may have spread from the interpeduncular cistern.
The distribution of SAH in the preoperative CT did not usually involve the interpeduncular and prepontine cisterns [Figure 3]a], suggesting an intact Liliequist's membrane.
In the patients with aqueductal stenosis or obstruction, intraaqueductal CSF flow is reduced or fully absent, so endoscopic fenestration of the third ventricle floor provides an alternative quasi-physiological CSF flow pathway to the subarachnoid spaces through the interpeduncular cistern and downwards, resulting in dispersed and minimized pressure gradient on midline brain structures, surrounding cerebral aqueduct [5].
The principal MRI findings of Joubert syndrome are deep interpeduncular fossa together with a narrowing of the isthmus, thickening of the superior cerebellar peduncle, fourth ventricle deformity together with hypolplasia of the vermis, fastigumun rostral shift and sagittal vermian cleft originating from the incomplete union of the two halves of the vermis.
They found that physical nicotine withdrawal symptoms are triggered by activation of GABAergic neurons (neurons that secrete GABA, the brain's predominant inhibitory neurotransmitter), in the interpeduncular nucleus.
Studies in mice show that nicotine addiction can be traced to a single brain region called the interpeduncular nucleus.