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Open Access Case Report

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Cavernous Malformations of Septum Pellucidum and Trigeminal Nerve: A Case Report

Yugandhar Samireddypalle, Ravikumar Hanumaiah

Global Journal of Medical Case Reports 1(1); 10.31586/gjmcr.2021.010101 - June 22, 2021

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Abstract

Cerebral cavernous malformations are commonly seen in the cerebral parenchyma and are extremely rare in septum pellucidum, with only few case reports in the literature. Similarly cavernous malformatio... Read more

Figure 1. Non contrast CT brain demonstrates a 1.9 x 1cm (AP x TR) oblong hyperdense lesion along the septum pellucidum (Fig1a, b) with a few specks of coarse calcification. Another triangular hyper-dense lesion was identified along the right trigeminal nerve (Fig 1 c, d). There is ventriculomegaly, disproportionate to the sulcal prominence probably representing changes of normal pressure hy-drocephalus.

Figure 2. MRI images demonstrating T1 isointense lesion in the septum pellucidum (a) which is predomi-nantly hypointense on T2 WI (b) with central popcorn appearance and marked blooming on SWI images (c) suggestive of cavernous malformation. Mild enhancement of the lesion was identified on post contrast images (d).

Figure 3. MRI in the region of the right trigeminal nerve does not demonstrate any significant abnormality on the conventional T1 WI (a) and post contrast T1 WI (b). SWI phase images (c) demonstrates an oblong hyperintensity in the region of the right trigeminal nerve suggestive of cavernous malfor-mation.

Figure 4. SW images demonstrating linear hypointensities along the cerebellar foliae (a), representing super-ficial siderosis, indicating that the trigeminal nerve cavernous malformation had bled previously. Multiple Tiny SWI hypointensities are seen distributed in bilateral cerebral hemispheres (b, c), sug-gesting microbleeds.

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