Complex Arterial and Venous Thrombosis in Polycythemia Vera: what Does Leukocytosis Predict?

Perspectives on thrombosis in essential thrombocythemia and polycythemia vera: is leukocytosis a causative factor?

Leukocyte (WBC) count has been recently identified as an independent predictor of major thrombosis in both essential thrombocythemia (ET) and polycythemia vera (PV). However, whether leukocytosis should be simply considered a marker for vascular disease or whether elevated WBC levels actually contribute directly to causing such disorders is presently matter of many studies. By adopting epidemio...

Pheochromocytoma, polycythemia, and venous thrombosis.

Polycythemia is rarely associated with pheochromocytoma. A patient with a 22-year history of malignant pheochromocytoma is presented in whom major complications developed as a result of long-standing polycythemia, apparently due to secretion of erythropoietin by the tumors. Despite attempts to reduce tumor burden by surgery, chemotherapy, and large doses of I-131-metaiodobenzylguanidine, polycy...

Polycythemia mimicking venous sinus thrombosis.

Venous sinus thrombosis is a relatively uncommon disorder that frequently is associated with confusing clinical findings and delayed diagnosis. Patients are often screened with unenhanced CT, and CT findings may be subtle and may include hyperattenuation of cerebral veins or venous sinuses secondary to intracranial thrombosis. This hyperattenuation may be mimicked by polycythemia, as shown in t...

A Rare Presentation of Arterial Thrombosis after Venous Thrombosis in a Patient with Gastric Cancer

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 gas...

Prevention of thrombosis in polycythemia vera and essential thrombocythemia.

Malignant Cerebral Venous Sinus Thrombosis in Polycythemia

permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Cerebral venous thrombosis (CVT) is a rare variety of cere-brovascular disease that can occur at any age and generally has a favorable outcome. However, poor outcome in CVT has been documented. 1 It is caused by a wide range of etiologies, polycy-themia is one amo...