Tomografia por emissão de pósitrons com 18F fluordesoxiglicose como exame não invasivo para o diagnóstico de sarcomas primários de artéria pulmonar / 18F-fluorodeoxyglucose positron emission tomography as a noninvasive method for the diagnosis of primary pulmonary artery sarcoma
J. bras. pneumol
;
37(6): 817-822, nov.-dez. 2011. ilus
Article
in Portuguese
| LILACS
| ID: lil-610916
RESUMO
Os sarcomas de artéria pulmonar são tumores raros e de difícil diagnóstico, simulando frequentemente o tromboembolismo pulmonar crônico. Relatamos dois casos de pacientes do sexo feminino com quadro clínico de dispneia e massas pulmonares associadas a falhas de enchimento na artéria pulmonar em angiotomografia de tórax. A tomografia por emissão de pósitrons com 18F fluordesoxiglicose mostrou hipercaptação das respectivas lesões. O sarcoma de artéria pulmonar foi confirmado posteriormente por exame anatomopatológico. Ressaltamos a importância do uso desse tipo de tomografia como exame não invasivo no auxílio diagnóstico desses tumores.
ABSTRACT
Pulmonary artery sarcomas are rare, difficult-to-diagnose tumors that frequently mimic chronic pulmonary thromboembolism. We report the cases of two female patients with clinical signs of dyspnea and lung masses associated with pulmonary artery filling defects on chest CT angiography. We performed 18F-fluorodeoxyglucose positron emission tomography, which revealed increased radiotracer uptake in those lesions. Pulmonary artery sarcoma was subsequently confirmed by anatomopathological examination. We emphasize the importance of this type of tomography as a noninvasive method for the diagnosis of these tumors.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Pulmonary Artery
/
Sarcoma
/
Vascular Neoplasms
/
Radiopharmaceuticals
/
Positron-Emission Tomography
Type of study:
Diagnostic study
Limits:
Aged
/
Female
/
Humans
Language:
Portuguese
Journal:
J. bras. pneumol
Journal subject:
Pulmonary Disease (Specialty)
Year:
2011
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade de São Paulo/BR
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