ganglioneuroblastoma/dopamina

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A rare ganglioneuroblastoma secreting dopamine and the value of its measurement in diagnosis and prognosis.

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A case is described of a patient with a ganglioneuroblastoma, initially located in the right adrenal, which produced an excess of dopamine (7646 and 7959 nmol/24 h), approximately two and a half times the upper limit of the normal daily urine output. The urinary excretion of noradrenaline,

Case report of severe psychiatric sequelae in a 16-year-old female following resection of a purely dopamine-secreting ganglioneuroma.

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Ganglioneuromas (GN) are rare, benign tumors derived from neural crest cells. They are in the same family of neuroblastic tumors that includes the intermediate ganglioneuroblastoma (GNB) and the malignant neuroblastoma (NB), each of which carries a different prognosis based on tumor

Surgical strategy for an adult patient with a catecholamine-producing ganglioneuroblastoma and a cerebral aneurysm: a case report.

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BACKGROUND Ganglioneuroblastomas, particularly those that produce catecholamine, are extremely rare in adults. Here, we report an interesting surgical case of an adult patient with a catecholamine-producing ganglioneuroblastomas in her adrenal gland, suspected to be a pheochromocytoma, and with a

Immunohistochemical markers in (ganglio)neuroblastomas.

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17 commercially available antibodies were applied on formalin fixed and paraffin embedded tissues of neuroblastomas (NBLs, n = 20), ganglioneuroblastomas (GNBLs, n = 7) and ganglioneuromas (GNs, n = 7), to assess their reliability as markers for neuroendocrine differentiation and the degree of tumor

Diagnostic immunohistochemistry of neuroblastic tumors.

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Eighteen commercially available antibodies were applied to formalin-fixed, paraffin-embedded neuroblastomas (NBLs, n = 20), ganglioneuroblastomas (GNBLs, n = 7), and ganglioneuromas (GNs, n = 7) to assess their reliability as markers for neuroendocrine differentiation and degree of tumor cell

Excretion of catecholamines in relatives of patients with familial neuroblastoma.

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The urinary excretion of catecholamines in 13 close relatives of two distantly related patients with congenital neuroblastoma was investigated. One of these relatives was a child with already known ganglioneuroblastoma. The catecholamines noradrenaline and dopamine were determined. Vanilmandelic

Twelve-year experience in the investigation and treatment of paragangliomas.

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We report a 12-year laboratory experience in the diagnosis of 37 patients with phaeochromocytoma, one with malignant paraganglioma and one with ganglioneuroblastoma. Surgery was performed in eight different hospitals, which underlines the difficulty of ensuring uniformity of investigations. Of the

Liquid-chromatographic evaluation of age-related changes in the urinary excretion of free catecholamines in pediatric patients.

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Pediatric patients (to age 18) without neuroblastoma show an age-related decrease in urinary excretion of each of the catecholamines--epinephrine, norepinephrine, and dopamine--in relation to creatinine excretion. From these data, I have developed reference intervals for pediatric age groups.

Determination of catecholamines and their 3-O-methylated metabolites in urine by mass fragmentography with use of deuterated internal standards.

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We report the determination of catecholamines (dopamine, norepinephrine, and epinephrine) and their 3-O-methylated metabolites (3-methoxytyramine, normetanephrine, and metanephrine) in urine by gas chromatography/mass spectrometry, with use of stable isotopically labeled internal standards. Normal

Application of SPME supported by ionic liquids for the determination of biogenic amines by MEKC in clinical practice.

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The analysis of biogenic amines (BAs) and their metabolites is helpful for the diagnosis of central nervous system disorders and other neuroendocrine and cancer disturbances. In the study, a developed micellar electrokinetic chromatography method, coupled with diode array detection (MEKC-DAD), was

Adrenal and retroperitoneal mixed neuroendocrine-neural tumors.

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Four cases of mixed neuroendocrine-neural tumors composed of pheochromocytoma and neuroblastoma elements (including ganglioneuroma and ganglioneuroblastoma) were studied for the presence of catecholamine-synthesizing enzymes, neuroendocrine markers, and peptide hormones with clinicopathological

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