Journal of neuroimaging : official journal of the American Society of Neuroimaging
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Dolichoectasia (DE) is a vasculopathy that consists of abnormal elongation and dilatation of arteries. The objective of this study is to evaluate the frequency of DE in an unselected population and assess different diagnostic methods. ⋯ A TCV-adjusted intracranial arterial diameter ≥2 SD is proposed as a useful DE definition. The variability in the prevalence of DE depending on the methods used underscores the need to agree on a reliable, universal definition of DE.
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Clinical Trial
Endovascular treatment of posttraumatic carotid-cavernous fistulas and pseudoaneurysms with covered stents.
The treatment of posttraumatic direct carotid-cavernous fistulas (TCCFs) with detachable balloons (DBs) is associated with relatively high recanalization rate. The aim of this study was to evaluate the feasibility of using covered stents in patients with posttraumatic carotid-cavernous fistulas (CCFs) and pseudoaneurysms. ⋯ These preliminary results indicate that the use of a covered stent is a feasible procedure for the treatment CCFs and pseudoaneurysms.
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Case Reports
Carotid artery dissection due to elongated styloid process: a self-stabbing phenomenon.
Elongated styloid process (ESP) is an anatomical variant that has been described as the cause of Eagle syndrome. Until recently, the styloid process has not been appreciated as a significant contributor to carotid artery dissection (CAD), which is not part of Eagle syndrome. ⋯ Forced sustained head turning with maximal muscle contraction was the initiating event driving the styloid process into the wall of the ICA in a manner that can be likened to being stabbed with a pointed object. Knowing the association between ESP, Eagle syndrome, and CAD shall lead to increased awareness and appropriate diagnosis and treatment.
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Reversible lesions on magnetic resonance imaging that transiently restrict diffusion in the splenium of the corpus callosum (SCC) without any other accompanying lesions have been reported in various clinical conditions. We offer the first report of postpartum cerebral angiopathy with reversible SCC lesions.
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Case Reports
Peripheral nerve sheath tumors. Benign or malignant? The role of MRI and ultrasonography in a case report.
A 31-year-old male patient admitted to another hospital for investigation of a localized painful hump in the medial surface of his left leg. The clinical examination revealed a painful palpable lump in the medial surface of left thigh that was initially thought to be a hematoma due to a history of recent trauma. However, an ultrasound was requested to exclude deep venous thrombosis (DVT). ⋯ A consequent MRI examination confirmed the presence of a fusiform tumor in the anatomic path of the saphenous nerve. This was further confirmed intraoperatively, and pathologically was diagnosed as a malignant peripheral nerve sheath tumor (MPNST). In this present study the role of ultrasonography, the correlation between MRI and ultrasonographic findings are discussed and a review of the literature is presented.