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Vol. 150. Issue 3.
Pages 104-106 (February 2018)
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Vol. 150. Issue 3.
Pages 104-106 (February 2018)
Brief report
Bone marrow trephine biopsy in Hodgkin's lymphoma. Comparison with PET–CT scan in 65 patients
Biopsia de médula ósea en el linfoma de Hodgkin. Comparación con la PET-TC en 65 pacientes
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Sunil Lakhwania,
Corresponding author
sunillakhwani@hotmail.com

Corresponding author.
, Dolores Cabello-Garcíab, Ana Allende-Rierab, Carlos Cárdenas-Negrob, José María Rayaa, Miguel T. Hernández-Garciaa
a Servicio de Hematología y Hemoterapia, Hospital Universitario de Canarias, Tenerife, Spain
b Servicio de Medicina Nuclear, Hospital Universitario Nuestra Señora de la Candelaria, Tenerife, Spain
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Abstract
Background and objectives

To compare bone marrow biopsy (BMB) and PET/CT in detecting bone marrow involvement in Hodgkin's lymphoma.

Material and methods

Retrospective analysis of 65 patients with both tests in the initial staging or in relapse with special attention to the PET/CT uptake pattern.

Results

In 3 patients (4.6%), the BMB showed bone marrow involvement with the PET/CT being positive in them all: 2 with diffuse+multifocal pattern and one diffuse only. In 11 additional patients (total 14/65, 21%), bone marrow involvement was diagnosed by PET/CT because bone marrow uptake was above hepatic one. The pattern was focal only in 2 cases, multifocal in 5, diffuse in 3 and diffuse+multifocal in one. In these last 4 cases the BMB showed an unspecific myelopathy.

Conclusions

PET/CT detects all cases with BMB affected and many that escape to biopsy, however when the uptake pattern is diffuse it could be by involvement or reactive hyperplasia and in those cases the BMB should be done.

Keywords:
Hodgkin's lymphoma
Bone marrow trephine biopsy
Positron emission tomography with computed tomography
Resumen
Fundamento y objetivo

Comparar la biopsia de médula ósea (BMO) y la PET/CT en la detección de la afectación medular en el linfoma de Hodgkin.

Material y métodos

Análisis retrospectivo de 65 pacientes con realización de ambas pruebas en la estadificación inicial o en recaída con especial atención al patrón de la PET/CT.

Resultados

En 3 pacientes (4,6%) la BMO mostró afectación medular, siendo la PET/CT positiva en todos ellos: 2 con patrón difuso+multifocal y uno solo difuso. En 11 pacientes más (total 14/65, 21%) se estimó que había afectación medular ósea por PET/CT al tener un consumo de médula ósea superior al hepático. El patrón fue focal único en 2 casos, multifocal en 5, difuso en 3 casos y difuso+multifocal en uno. En estos últimos 4 casos la BMO mostró una mielopatía inespecífica.

Conclusiones

La PET/CT detecta todos los casos con BMO afectada y muchos que se escapan a la biopsia; sin embargo, cuando el patrón de captación es difuso puede ser por afectación o por hiperplasia reactiva y en esos casos debería mantenerse la BMO.

Palabras clave:
Linfoma de Hodgkin
Biopsia de médula ósea
Tomografía por emisión de positrones con tomografía computarizada

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