Assuntos
Aneurisma Aórtico/complicações , Dissecção Aórtica/complicações , Arteriopatias Oclusivas/etiologia , Artéria Pulmonar/diagnóstico por imagem , Dissecção Aórtica/diagnóstico por imagem , Aneurisma Aórtico/diagnóstico por imagem , Arteriopatias Oclusivas/diagnóstico por imagem , Erros de Diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Embolia Pulmonar/diagnóstico , RadiografiaRESUMO
The possible contribution of computed tomography (CT) in the management of patients with solitary pulmonary nodules (SPNs) or masses was reviewed retrospectively in 65 patients undergoing fiberoptic bronchoscopy (FOB). Nodules were evaluated by size, location, surface contour, and the presence in cross-section of a bronchus leading to or contained within the nodule or mass, a "positive bronchus sign." Thirty-five lesions were associated with a positive bronchus sign; 21 of 35 (60 percent) were diagnosed endoscopically, (p = .027); of 30 cases with a negative bronchus sign, only ten (30 percent) had a diagnosis made by FOB (p = .034). It is concluded that CT may be of use in the routine evaluation of pulmonary nodules, prior to bronchoscopy, especially in cases for which histologic evaluation is essential, especially to determine the presence or absence of a CT bronchus sign.
Assuntos
Broncoscopia , Neoplasias Pulmonares/diagnóstico , Tomografia Computadorizada por Raios X , Biópsia , Estudos de Avaliação como Assunto , Tecnologia de Fibra Óptica , Humanos , Pulmão/patologia , Neoplasias Pulmonares/patologia , Estudos RetrospectivosRESUMO
A hepatitis B vaccine derived from the plasma of carriers of hepatitis B virus has recently become generally available in the United States. Its use is recommended in groups considered to be at high risk of hepatitis B because of their exposure to potentially infectious blood, saliva, or semen. Experience in more than 12,000 patients to date indicates that the vaccine is safe, effective, and free of major side effects.
