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Inicio Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) 123I-MIBG, 18F-DOPA and 18F-FDG in a patient with MEN2 syndrome and recurrent ph...
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Vol. 32. Issue 4.
Pages 263-265 (July - August 2013)
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Vol. 32. Issue 4.
Pages 263-265 (July - August 2013)
Clinical note
123I-MIBG, 18F-DOPA and 18F-FDG in a patient with MEN2 syndrome and recurrent pheochromocytoma
123I-MIBG, 18F-DOPA y 18F-FDG en una paciente con síndrome de neoplasia endocrina múltiple tipo 2 y recidiva de feocromocitoma
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J.I. Cuenca-Cuencaa,
Corresponding author
nacho_cuenca@hotmail.com

Corresponding author.
, V.A. Marín-Oyagaa, I. Borrego-Doradoa, E. Navarro-Gonzálezb, J.M. Martos-Martínezc, R. Vázquez-Albertinoa
a Unidad de Gestión de Diagnóstico por la Imagen, Servicio de Medicina Nuclear, Hospital Universitario Virgen del Rocío, Sevilla, Spain
b Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen del Rocío, Sevilla, Spain
c Unidad de Gestión Clínica de Cirugía General y Digestiva, Unidad de Cirugía Endocrina, Hospital Universitario Virgen del Rocío, Sevilla, Spain
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Abstract

Pheochromocytoma is a rare tumor located in the medulla of the adrenal gland that is characterized by high catecholamine synthesis. Surgery is the treatment of choice and is usually curative if appropriately diagnosed and excised. Imaging methods, both morphological and functional, are of great importance in presurgical evaluation.

We report the case of a female patient with multiple endocrine neoplasia syndrome type 2, with bilateral adrenalectomy due to two pheochromocytomas and progressive elevation of urinary metanephrine. Magnetic resonance imaging showed a nodular image in the right adrenal fossa. The patient was referred to our unit in order to confirm suspicion of recurrence. Due to the absence of pathological findings in the 123I-MIBG scintigraphy and high suspicion of recurrence, PET/CT imaging with 18F-DOPA and 18F-FDG were performed, and the diagnosis was confirmed.

Keywords:
Positron emission tomography/computed tomography
6-18F-fluoro-l-dihydroxyphenylalanine
2-18F-2-fluoro-deoxy-d-glucose
123I-metaiodobenzyl-guanidine
Pheochromocytoma
Resumen

El feocromocitoma es un tumor poco frecuente localizado en la médula de la glándula adrenal y caracterizado por una elevada síntesis de catecolaminas. La cirugía es el tratamiento de elección y es potencialmente curativa si se diagnostica y reseca adecuadamente. Los métodos de diagnóstico por imagen, tanto morfológica como funcional, son de gran importancia en la evaluación prequirúrgica.

Se presenta el caso de una paciente con síndrome de neoplasia endocrina múltiple tipo 2 con suprarrenalectomía bilateral por sendos feocromocitomas y elevación progresiva de la metanefrina urinaria. En la resonancia magnética realizada se observó una imagen nodular en la fosa suprarrenal derecha, por lo que se remitió a nuestra unidad con el objetivo de confirmar la sospecha de recidiva. Dada la ausencia de hallazgos patológicos en la gammagrafía con 123I-MIBG y ante la alta sospecha de recidiva se realizaron estudios PET/TAC con 18F-DOPA y 18F-FDG que confirmaron el diagnóstico.

Palabras clave:
Tomografía por emisión de positrones/tomografía computerizada
6-l-18F-fluorodihidroxifenilalanina
2-18F-2-deoxy-d-glucosa
123I-metayodobencilguanidina
Feocromocitoma

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