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Vol. 54. Issue 10.
Pages 519-524 (December 2007)
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Vol. 54. Issue 10.
Pages 519-524 (December 2007)
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Similitudes y discrepancias en las características clinicopatológicas de feocromocitomas y paragangliomas
Clinical and pathological similarities and differences between pheochromocytomas and paragangliomas
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Elena Hervás Abada, Concepción Páramo Fernándeza, Anna Casteràs Romána, Reyes Luna Canoa, Jose Manuel Encisa de Sáb, Ricardo García-Mayora,
Corresponding author
ricardo.garcia.mayor@sergas.es

Correspondencia: Dr. R.V. García-Mayor. Apartado 1691. 36201 Vigo. España.
a Servicio de Endocrinología, Diabetes, Nutrición y Metabolismo. Hospital Universitario de Vigo. Vigo. España
b Servicio de Cirugía Vascular y Angiología. Hospital Universitario de Vigo. Vigo. España
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Objetivo

Comparar características clínicas, principalmente adrenérgicas, de los feocromocitomas (FC), paragangliomas simpáticos (PGLS) y parasimpáticos (PGLPS).

Pacientes y método

Se incluyó en el estudio a 34 pacientes diagnosticados y tratados consecutivamente de FC (20), PGLS (9) y PGLPS (5), con una edad media de 44 (rango, 17-74) años. Se comparó formas de presentación, manifestaciones clínicas, producción hormonal, características patológicas y resultados tras el tratamiento.

Resultados

Los pacientes fueron atendidos por múltiples servicios. Los FC se diagnosticaron predominantemente por clínica adrenérgica (65%); los PGLS, por clínica adrenérgica (44%) y por efecto compresivo (45%), y los PGLPS, por efecto masa (100%). Sin embargo, cuando se evaluó de forma dirigida la clínica adrenérgica, el 80% de los FC, el 66,7% de los PGLS y el 40% de los PGLPS la habían manifestado. Presentaron secreción hormonal el 82,4% de los FC y el 100% de los PGLS. No se realizó estudio bioquímico en 3 FC, 5 PGLS y en ningún PGLPS. El tamaño tumoral (en mm) de los FC fue significativamente mayor que los PGLS y PGLPS (59±28, 39±16 y 34±26). Tras la extirpación del tumor, 17 pacientes con FC, 7 con PGS y 4 con PGLPS quedaron libres de enfermedad, en 1 con PGLPS, éste persiste parcialmente, 1 PGLS recidivó y 5 pacientes murieron (3 con FC y 2 con PGLS).

Conclusiones

En nuestro estudio observamos que se diagnostica por clínica adrenérgica los FC (65%) y los PGLS (44%), y además los PGLPS también presentaron clínica compatible con producción de catecolaminas en el interrogatorio dirigido en un 40%. Queremos reseñar el alto porcentaje de manifestaciones adrenérgicas en el grupo de tumores extraadrenales, que no se suele estudiarlos en este sentido, por tanto creemos que deben ser manejados como una misma entidad nosológica por una unidad de referencia.

Palabras clave:
Feocromocitoma
Paraganglioma
Tumores neuroendocrinos
Objective

To compare the clinical features, mainly adrenergic manifestations, in patients with pheochromocytoma (PCT), sympathetic paraganglioma (SPGL) and parasympathetic paraganglioma (PSPGL).

Patients and method

Thirty-four patients consecutively diagnosed and treated for PCT (n=20), SPGL (n=9) and PSPGL (n=5) were included in the present study. The mean age was 44 years (range, 17-74). The forms of presentation, clinical manifestations, results of diagnostic tests, pathological characteristics, and postsurgery outcomes were analyzed.

Results

The patients were treated in different medical units in our hospital. Diagnosis of PCT was mainly based on adrenergic symptoms (65%), SPGL on adrenergic symptoms (44%) and compressive symptoms (65%) and PSPGL on the basis of the tumor mass effect (100%). However, exhaustive analysis of adrenergic manifestations revealed that 80%, 66.7% and 40% of patients with PCT, SPGL and PSPGL respectively had adrenergic manifestations. Eighty-two percent of patients with PCT and 100% of those with SPGL showed increased urinary excretion of catecholamines and their metabolites. Biochemical studies were not performed in three patients with PCT and five with SPGL and were performed in all patients with PSPGL. The mean tumoral size (in mm) was significantly higher in PCT than in SPGL and PSPGL (59±28, 39±16 and 34±26). After surgery, 17 patients with PCT, seven with PGS and four with PSPGL were considered cured, one patient showed partially persistent PSPGL, one patient with SPGL relapsed, and five patients died (three with PCT and two with SPGL).

Conclusions

In the present study, 65% of PCT and 44% of SPGL were diagnosed on the basis of adrenergic symptoms, while 40% of PSPGL also showed symptoms compatible with catecholamine production. We highlight the high percentage of adrenergic manifestations in the group of extra-adrenal tumors, which are not usually investigated in this context. Therefore, we believe that PCT, SPGL and PSPGL should be considered as the same nosological entity in different locations and should be managed in referral units.

Key words:
Pheochromocytoma
Paraganglioma
Neuroendocrine tumors
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Copyright © 2007. Sociedad Española de Endocrinología y Nutrición
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