anaplastic thyroid carcinoma is an uncommon, highly aggressive malignancy usually presenting in the elderly. an eighteen year old boy was recently diagnosed as anaplastic carcinoma of the thyroid.  pet/cect scan performed for staging, revealed a large fdg avid heterogeneously enhancing thyroid mass with bilateral jugular venous thrombosis, which also showed increased fdg uptake, thus pointing t...

the objective of this study was to determine the prevalence and incidence of venous thromboembolism among critically ill medical surgical patients. in this cross sectional and retrospective study, we observed 243 patients who were first admitted at the intensive care unit. patients who were diagnosed with deep venous thrombosis or embolism either by clinical or paraclinical methods were enrolle...

introduction: cerebral venous-sinus thrombosis (cvst) is a life threatening condition that needs rapid diagnosis and treatment. it appears comparatively more common in middle east and south asia. objectives: to determine the demographic, clinical patterns, etiologies and prognostic factors of cvst in the north east of iran. materials and methods: all adult patients admitted with a documented di...

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...

background cerebral venous sinus thrombosis (cvst) is a frequent cause of cerebrovascular disease in iran. objectives in this study, we report cumulative data of published iranian studies in a systematic manner with critically appraisal and presenting future directions. materials and methods the authors systematically searched the isi web of knowledge, pubmed, scopus, ebesco and iranmedex for k...

background budd-chiari syndrome (bcs) is defined as hepatic venous outflow obstruction (hvoo). bcs is an uncommon, life-threatening liver disorder. this study describes the clinical and etiological characteristics in addition to the long-term outcome of bcs in a single referral center in tehran, iran. methods we reviewed long-term outcome of patients who were diagnosed with bcs between 1989 and...

background portal vein thrombosis (pvt) is one of the most common causes of extrahepatic portal hypertension in children, which may follow neonatal umbilical vein catheterization. the incidence rates of catheter-related pvt, in infants and children vary in different studies. this study aimed to determine pvt incidence in the children under 3 years old with a history of neonatal umbilical vein c...

antiphospholipid antibodies (apla) may be detected in normal pregnancies and also may cause thrombosis, recurrent fetal loss, placental infarction and preeclampsia. in the present study the possible differences in apla titer between healthy pregnant women and preeclampsia cases without history of thrombosis was examined. the apla titer in 50 healthy pregnant women with 50 preeclampsia cases wit...

The vascular complications, their management and results of treatment in 417 consecutive renal transplantations performed at Taleghani Hospital from September 1989 to December 1997, are presented. There were 7 (1.6%) vascular complications. Among them renal artery stenosis occurred in 2 cases (0.4%), renal artery thrombosis in 2 cases (0.4%), renal vein thrombosis in one case (0.2%), bleed...

Thromboembolic events represent the main cause of morbidity and mortality in patients with polycythemia vera. Leukocytosis has been identified as an important risk factor for development of vascular thrombosis. A 47-year-old woman with polycythemia vera presented with pain and swelling in her right calf. She was scheduled to receive anagrelide which was effective on polycythemia and thrombocyto...