منابع مشابه
Tumor Markers in Pheochromocytomas
.........................................................................................................................................................10 INTRODUCTION................................................................................................................................................11 REVIEW OF THE LITERATURE.............................................................
متن کاملMolecular markers of paragangliomas/pheochromocytomas
Paragangliomas/pheochromocytomas comprise rare tumors that arise from the extra-adrenal paraganglia, with an incidence of about 2 to 8 per million people each year. Approximately 40% of cases are due to genetic mutations in at least one out of more than 30 causative genes. About 25-30% of pheochromocytomas/paragangliomas develop under the conditions of a hereditary tumor syndrome a third of whi...
متن کاملPheochromocytomas and secreting paragangliomas
Catecholamine-producing tumors may arise in the adrenal medulla (pheochromocytomas) or in extraadrenal chromaffin cells (secreting paragangliomas). Their prevalence is about 0.1% in patients with hypertension and 4% in patients with a fortuitously discovered adrenal mass. An increase in the production of catecholamines causes symptoms (mainly headaches, palpitations and excess sweating) and sig...
متن کاملRelease of neuropeptide Y from pheochromocytomas.
To investigate the release of neuropeptide Y (NPY) from the pheochromocytomas, we studied the relationship between the plasma and tumor tissue immunoreactive (IR) NPY concentrations in 13 patients with pheochromocytoma and measured the IR-NPY concentration in plasma samples obtained by catheter from several veins (jugular veins, superior vena cava, renal veins, adrenal veins and inferior vena c...
متن کاملFeasibility of Laparoscopic Adrenalectomy for Large Pheochromocytomas
BACKGROUND AND OBJECTIVES The majority of surgeons consider large and potentially malignant pheochromocytomas an absolute contraindication for laparoscopic adrenalectomy (LA). The aim of this study was to evaluate the risks and outcomes of LA in patients with this anomaly. METHODS Five patients (2 males, 3 females) with large (>6 cm) pheochromocytomas were selected. Preoperative investigation...
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ژورنال
عنوان ژورنال: The Journal of Clinical Endocrinology & Metabolism
سال: 2003
ISSN: 0021-972X,1945-7197
DOI: 10.1210/jc.2003-031234