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Rev. esp. med. nucl. imagen mol. (Ed. impr.) ; 32(5): 318-320, sept.-oct. 2013.
Article in Spanish | IBECS | ID: ibc-115148

ABSTRACT

El linfoma intravascular de células B grandes es un subtipo raro de linfoma no Hodgkin extranodal. Por su presentación insidiosa y un bajo índice de sospecha reviste un mal pronóstico en una gran proporción de casos, siendo diagnosticado durante la autopsia. Puede afectar a diversos órganos en su conjunto o de forma aislada, siendo el compromiso pulmonar único una forma de presentación extremadamente rara. Su diagnóstico depende de la sospecha del médico clínico y de una adecuada valoración mediante estudios de imágenes y la correcta selección del órgano a biopsiar. Si se detecta a tiempo, es tratado con una combinación de quimioterapia asociada a un anticuerpo monoclonal (anti-CD20). En esta nota clínica exponemos el caso de un paciente que, siendo estudiado con tomografía por emisión de positrones con 2-[F-18]-fluoro-2 deoxy-D-glucosa (FDG) por sospecha de enfermedad linfoproliferativa con estudios anatómicos sin alteraciones evidentes, se le diagnostica un linfoma intravascular pulmonar de células B grandes(AU)


Intravascular lymphoma is a rare subtype of extranodal Non-Hodgkin's lymphoma. Its prognosis is poor in a high percentage of cases due to its insidious appearance and low clinical suspicion. Its diagnosis is usually only reached after an autopsy. It may affect different organs as a whole or only one organ. It is extremely rare that the lung is the only damaged organ. Its diagnosis depends of the clinician's suspicion and proper evaluation with imaging studies as well as correct selection of the organ to be biopsied. When detected on time, the treatment of choice is a combination of a series of chemotherapy associated to a monoclonal antibody (anti-CD20). We present the case of a male patient who underwent a positron emission tomography-computed tomography with 2-[F-18]-fluoro-2 deoxy-D-glucose (FDG) due to symptoms suggestive of a lymphoproliferative disease with no clear structural abnormalities. The images led to a diagnosis of pulmonary intravascular large B cell lymphoma(AU)


Subject(s)
Humans , Male , Middle Aged , Lung Neoplasms/diagnosis , Lung Neoplasms , Positron-Emission Tomography/instrumentation , Positron-Emission Tomography/methods , Positron-Emission Tomography , Fluorodeoxyglucose F18 , Flow Cytometry/methods , Flow Cytometry , Nuclear Medicine/methods , Prognosis , Antigens, CD20 , Antigens, CD20 , Biopsy/instrumentation , Biopsy/methods , Immunohistochemistry/instrumentation , Immunohistochemistry/methods , Immunohistochemistry , Lung Neoplasms/drug therapy , Nuclear Medicine/instrumentation
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