Thromboembolic phenomena are the serious consequences of assisted reproductive technology. We present a case of cerebral sinus vein thrombosis (CVST) following ovarian hyper stimulation syndrome (OHSS). Ten days after recovering from OHSS, the patient presented in the emergency department with thunderclap headache. Her Magnetic Resonance Venography (MRV) showed occluded left transverse sinus an...

PURPOSE To determine whether MR angiography can be used to differentiate between the two vascular causes of bithalamic hyperintensity on T2-weighted MR images: "top of the basilar" artery occlusion and deep cerebral vein thrombosis. METHODS A retrospective review identified six patients with bithalamic T2 hyperintensity of vascular causes. MR angiography was performed in four patients, MR ang...

Neonatal cerebral infarction is a serious and disabling condition. It is extremely rare if it occurs in association with portal vein thrombosis. We are reporting 2 cases of neonatal cerebral infarction with this etiology. The unique mechanism of cerebral infarction will be discussed. We propose that in the absence of any identifiable cause for the cerebral infarction, portal vein thrombosis sho...

BACKGROUND AND OBJECTIVES Despite inherited thrombophilic risk factors being strongly associated with vein thrombosis, decisions on whether to screen subjects for these factors vary in different clinical settings. DESIGN AND METHODS We calculated the prevalence of inherited thrombophilic risk factors in a large cohort of patients (n=1,238) with different clinical manifestations of vein thromb...

BACKGROUND We report a unique case of an acquired pial arteriovenous fistula occurring after an asymptomatic thrombosis of a superficial cerebral vein. CASE DESCRIPTION A cerebral angiogram performed in a 51-year-old man with subarachnoid hemorrhage revealed a 10-mm ruptured anterior communicating artery aneurysm and a thrombosed left superficial middle cerebral vein. Coil embolization of the...

thrombocytosis (both primary and secondary), leukocytosis, sicklecell disease, hyperhomocysteinemia, hemoconcentration due to a multitude of causes, hypereosinophilia and antiphospholipid antibody (APLA) syndromes.2 As mentioned already, almost always more than one cause coexists in each patient, which is found out only on good clinical evaluation and not by laboratory studies alone. To compoun...

Pregnancy increases the risk of cerebrovascular accidents to approximately 13 times the expected rate. Most of the cerebrovascular accidents are due to cerebral venous thrombosis. Headache, seizures and focal neurological deficits are some of the symptoms of cerebral venous thrombosis. Headache can also be due to postural puncture, pre eclampsia and eclampsia in the postpartum period. Neuroima...

globin serves as an intrinsic contrast agent for cerebral veins which contain deoxygenated blood. Other extravascular blood degradation products with paramagnetic properties such as methemoglobin, hemosiderin and ferritin also create a contrast in SWI. In this sequence in order to increase the visualization of the smaller veins, a phase mask obtained from the magnetic resonance (MR) phase image...