Question:

Isolated cortical vein thrombosis
1. is an alternative term for dural venous sinus thrombosis
2. is a complication of venous sinus thrombosis
3. always precedes venous sinus thrombosis
4. is always associated with venous sinus thrombosis
5. often occurs as the only entity





Answer:

The correct answer for the question "Isolated cortical vein thrombosis" is:

5. often occurs as the only entity



Explanation

Isolated cortical vein thrombosis often occurs as the only disease entity and usually presents with mild symptoms.



From the manuscript:
Isolated Cortical Vein Thrombosis - The Cord Sign
Radiology Case. 2009 Mar; 3(3):21-24


This article belongs to the Neuro section.




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From the manuscript

Isolated Cortical Vein Thrombosis - The Cord Sign

Free full text article: Isolated Cortical Vein Thrombosis - The Cord Sign

Abstract
Isolated cortical vein thrombosis is an uncommon condition and often difficult to diagnose, both clinically and radiologically. We report a case of a 38 years old man who presented with headache of new onset and clinical examination was unremarkable. The unenhanced brain CT did not reveal any abnormality. In view of unrelenting headache and partial seizures, we performed magnetic resonance imaging (with axial T1, T2 and gradient echo sequences, coronal FLAIR, diffusion weighted imaging as well as Gadolinium contrast-enhanced images) and magnetic resonance venography of the brain that revealed an isolated parietal cortical vein thrombosis with the rarely reported `cord sign`. We report the clinical and radiological findings in our patient with isolated parietal cortical vein thrombosis.






References



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2. Leach JL, Bulas RV, Ernst RJ, Cornelius RS. MR imaging of isolated cortical vein thrombosis: the hyperintense vein sign. J Neurovasc Dis 1996; 1:17.
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3. Derdeyn CP, Powers WJ. Isolated cortical venous thrombosis and ulcerative colitis. AJNR Am J Neuroradiol 1998;19:488490.
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4. Ahn TB, Roh JK. Cerebral venous thrombosis in adults: the role of imaging evaluation and management. Arch Neurol 2003; 60:1314 -1316.
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