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Inicio Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) FDG PET/CT appearance of multicentric Castleman's disease mimicking lymphoma
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Vol. 31. Issue 3.
Pages 142-144 (May - June 2012)
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Vol. 31. Issue 3.
Pages 142-144 (May - June 2012)
Clinical note
FDG PET/CT appearance of multicentric Castleman's disease mimicking lymphoma
Distribución de la FDG PET/TAC en la enfermedad de Castleman simulando Linfoma
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U. Elboga
Corresponding author
umutelboga@hotmail.com

Corresponding author.
, Y. Narin, M. Urhan, E. Şahin
GATA Haydarpaşa Training Hospital, İstanbul, Turkey
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Abstract

We report a case of a multicentric form of Castleman's disease with multiple lymph nodes showing intense FDG uptake on whole body scan mimicking non-Hodgkin's lymphoma. In this report, the patient had multiple cervical, mediastinal, hilar, retroperitoneal and abnormal lymph nodes in the groin. 18F-fluorodeoxyglucose positron emission tomography/computed tomography was performed before tissue sampling. 18F-FDG/PET demonstrated multiple areas of increased uptake in cervical, mediastinal, hilar, retroperitoneal and groin lymph nodes, suggesting a generalized disease of the lymphatic system including non-Hodgkin's lymphoma. The final diagnosis is based on the histopathological findings of the material obtained from the cervical lymphadenectomy. The histological diagnosis was multicentric plasma cell variant of Castleman's disease. 18F fluorodeoxyglucose positron emission tomography/computed tomography scan helped to identify the lymph nodes involved throughout the whole body, but did not help to differentiate non-Hodgkin's lymphoma. The clinical conclusions and PET/CT findings are described in this report.

Keywords:
Castleman's disease
Positron emission tomography/Computed tomography
Angiofollicular lymphoid hyperplasia
Resumen

Se presenta un caso de enfermedad de Castleman multicéntrica con múltiples ganglios linfáticos que muestran una intensa captación de FDG, imitando el linfoma no-Hodgkin. El paciente presenta múltiples nódulos linfáticos cervicales, mediastínicos, hiliares, retroperitonealeses, así como nódulos linfáticos anormales en la ingle.

La tomografía por emisión de positrones 18F fluorodeoxyglucosa/tomografía computarizada se realizó antes de obtener las muestras de tejido. La 18F FDG-PET mostró múltiples áreas de aumento de captación en ganglios linfáticos cervicaleses, mediastínicos, hiliares, retroperitoneales e inguinales, sugiriendo una enfermedad generalizada del sistema linfático, como el linfoma no-Hodgkin. El diagnóstico final se basó en los hallazgos histopatológicos obtenidos de la linfadenectomía cervical. El diagnóstico histológico fue el de enfermedad de Castleman multicéntrica variante de células plasmáticas. La 18F fluorodeoxyglucosa tomografía por emisión de positrones/tomografía computada ayudó a identificar la extensión corporal de la afectación ganglionar, pero no permitió un diagnóstico diferencial conel linfoma no Hodgkin. Se describen las conclusiones clínicas y los hallazgos de la PET/TAC.

Palabras clave:
Enfermedad de Castleman
Tomografía por emisión de positrones/Tomografía computarizada
Hiperplasia linfoide angiofolicular

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