Journal of neuroimaging : official journal of the American Society of Neuroimaging
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Case Reports
Multifocal intradural spinal AVF and renal artery aneurysms in a case of Klippel Trenaunay Syndrome (KTS).
We report an interesting case of a young patient who had hypertrophy of right leg and nevoid geographic skin lesion on the dorsal aspect of the right foot and leg suggestive of Klippel Trenaunay syndrome (KTS) and who presented for spinal digital subtraction angiography (DSA) to investigate the cause of progressive weakness of bilateral lower limbs. DSA revealed spinal arteriovenous fistulae (AVFs) at 3 levels and bilateral renal artery aneurysms. Although multiple intradural spinal cord AVFs and renal artery aneurysms are considered a feature of KTS, their clear demonstration in a single case either alone or together is not available in literature to the best of this author's knowledge. Existence of multifocal intradural fistulae in KTS calls for a detailed and complete spinal DSA even after a fistula is detected.
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Sensory neuronopathies (SN) are peripheral nervous system disorders associated with degeneration of dorsal root ganglion neurons. Magnetic resonance imaging (MRI) studies have shown abnormalities limited to T2-weighted high signal intensity in the posterior columns. ⋯ Sjögren's syndrome-related SN may be associated with a more diffuse immune-mediated aggression, involving also the brainstem, and leading to some of the blink reflex abnormalities observed in nonparaneoplastic SN.
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Meningiomas are frequent intracranial, non-glial tumors of adults. We present the unusual left lateral ventricular localization of meningioma in a 51-year-old man. The magnetic resonance (MR) images showed well demarcated, large mass of the atrium of the left lateral ventricle with transependymal extension into the left temporal lobe. ⋯ The mass was completely resected. The diagnosis of transitional type intraventricular meningioma, with psammoma bodies, histologic grade I was made. Progesterone and estrogen receptors were negative.
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Comparative Study
Detection of the siphon internal carotid artery stenosis: transcranial Doppler versus digital subtraction angiography.
Transcranial Doppler (TCD) is widely applied to evaluate the intracranial large artery stenosis. We aimed to evaluate the accuracy of TCD in detecting siphon internal carotid artery (SICA) stenosis against digital subtraction angiography (DSA). ⋯ The criteria have limited but acceptable sensitivity and specificity in detecting SICA stenoses. Abnormal findings of siphon carotid on TCD require further clarification.