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Christopher Kollar, Geoffrey Parker, and Ian Johnston

✓ It is probable that a significant number of cases of pseudotumor syndrome (PTS) occur because of cranial venous outflow obstruction, yet reports of direct treatment of the obstruction are few and inconclusive. In this study the authors report three cases of PTS with angiographically confirmed venous sinus obstruction treated by direct, endovascular procedures; urokinase infusion in two and balloon venoplasty in one. Two patients suffered transient complications that resolved satisfactorily. All three showed initial resolution of the signs and symptoms of PTS but one relapsed after 8 months and required surgical treatment. The possible role and methods of treatment of cranial venous outflow obstruction in PTS are discussed.

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Glenn L. Keiper Jr., Jonathan D. Sherman, Thomas A. Tomsick, and John M. Tew Jr.

venous occlusive disease, in Wilkins RH, Rengachary SS (eds): Neurosurgery. New York: McGraw-Hill, 1985, Vol 2, pp 1300–1307 16. Lam BL , Schatz NJ , Glaser JS , et al : Pseudotumor cerebri from cranial venous obstruction. Ophthalmology 99 : 706 – 712 , 1992 Lam BL, Schatz NJ, Glaser JS, et al: Pseudotumor cerebri from cranial venous obstruction. Ophthalmology 99: 706–712, 1992 17. Padayachee TS , Bingham HB , Graves MJ , et al : Dural sinus thrombosis. Diagnosis and follow-up by magnetic resonance angiography and imaging. Neuroradiology