Extraskeletal Ewing's sarcoma is rarely found in the head and neck regions. We report an unusual case of extraskeletal Ewing's Sarcoma of the parapharynx region in a 49-year-old man who presented with blindness. MRI examination showed marked enhancement of tumor thrombosis involving the superior sagittal sinus, straight sinus, transverse sinus, sigmoid sinus, and internal jugular vein. The fina...

background: venous thromboembolism, which comprises deep vein thrombosis and pulmonary embolism and is a significant cause of morbidity and mortality among patients with cancer. the aim of the present study was to report a rare presentation of arterial thrombosis after venous thrombosis in a patient with gastric cancer. report of the case: a 45 year-old female patient with locally advanced gast...

Inflammatory bowel disease (IBD) is an idiopathic inflammatory disease of the gastrointestinal tract. There is a well-known risk of thrombosis in patients with IBD with an overall incidence of 1.3-7.5%. Cerebral venous sinus thrombosis (CVST) has been reported as an uncommon complication of IBD. It is suspected to be a consequence of genetic predisposition and the hypercoagulable state occurrin...

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cerebral vein thrombosis (cvt) is an infrequent condition with a large variety of causes that can lead to serious disabilities. however, in 20% to 35% of cases, no cause is found. in this study we evaluated the hereditary (p & c proteins, antithrombin, mutation of prothrombin g20210a and factor v leiden), other risk factors (hyperhomocycteinemia, factor viii, acl-ab, apl-ab, and ocp) and clinic...

Letters to the Editor will be published, if suitable, as space permits. They should not exceed 1,000 words (typed double-spaced) in length and may be subject to editing or abridgment. To the Editor. Noninfectious thrombosis of cerebral veins is commonly found in patients with hereditary coagulation or immunologic disorders and during pregnancy or intake of contraceptive drugs. Severe cases are ...

introduction deep vein thrombosis is one of the most important complications in patients with spinal cord injury. this study compares the effects of mechanical prophylaxis with or without pharmacological prophylaxis on prevention of deep vein thrombosis in patients with spinal cord injury. materials and methods we conducted a double blind clinical trial study with 75 cases. these patients were ...

introduction: the main inhibitors of coagulation pathway are antithrombin (at), protein c and protein s. these inhibitors are necessary to prevent thromboembolism. hereditary deficiency of inhibitors is the main cause of alteration in balance between the anti-clotting and the formation of thrombin. patients with this abnormality are susceptible to venous thromboembolism (vte). two major clinica...