RESUMO
A 47-year-old man presented with subacute, low back pain and increased creatinine levels. A CT scan showed an extrinsic, bilateral compression of the ureters by a retroperitoneal mass with pronounced uptake of 18F-fluorodeoxyglucose in positron emission tomography. Histological findings were consistent with the diagnosis of retroperitoneal fibrosis. Urological decompression was performed. The initiated corticosteroids led to a rapid clinical improvement and regression of the retroperitoneal mass. A relapse occurred after tapering of corticosteroids with a prompt response to increase of the dosage.
Assuntos
Injúria Renal Aguda/etiologia , Dor Lombar/etiologia , Dor Lombar/prevenção & controle , Fibrose Retroperitoneal/complicações , Fibrose Retroperitoneal/terapia , Obstrução do Colo da Bexiga Urinária/etiologia , Obstrução do Colo da Bexiga Urinária/terapia , Injúria Renal Aguda/diagnóstico , Injúria Renal Aguda/prevenção & controle , Terapia Combinada , Descompressão Cirúrgica/métodos , Glucocorticoides/uso terapêutico , Humanos , Dor Lombar/diagnóstico , Masculino , Pessoa de Meia-Idade , Fibrose Retroperitoneal/diagnóstico , Resultado do Tratamento , Obstrução do Colo da Bexiga Urinária/diagnósticoRESUMO
The authors analyzed the results of 650 lesions of the central nervous system submitted to intraoperative cytological diagnosis by the smear technique. Cytological and paraffin section diagnoses were compared. The following statistical values were obtained: accuracy of 97.3%, sensitivity of 97.9%, specificity of 95%, positive predictive value of 99.1%, and negative predictive value of 89.6%. The authors comment on their main pitfalls using this cytological diagnostic procedure.
