Asunto(s)
Enfermedades de los Peces/microbiología , Nocardiosis/veterinaria , Nocardia/genética , Animales , Secuencia de Bases , ADN Bacteriano , Enfermedades de los Peces/mortalidad , Enfermedades de los Peces/patología , Explotaciones Pesqueras , Datos de Secuencia Molecular , Nocardia/aislamiento & purificación , Nocardiosis/microbiología , Nocardiosis/mortalidad , Nocardiosis/patología , Perciformes , Análisis de Secuencia de ADNRESUMEN
A total of 450 patients was referred for real time transillumination of both breasts. Of these, 84 were investigated by either cyst aspiration or excisional biopsy within two months of the breast light scan. Fourteen malignant and 70 benign lesions were correctly diagnosed by light scanning preoperatively. X-ray mammography produced four false negative results in this same group of patients. Two of the malignant lesions diagnosed by light scanning were not palpable. Light scanning had a sensitivity of .93 in the detection of breast cancer and a specificity of .89 in this study, following correlation with biopsy or cyst aspiration. Although mammography is still the reference technique in breast screening, real time light scanning by an experienced operator and interpreter should be an important adjunct in any clinic responsible for evaluating breast disease. The technique has the advantage of being safe, painless, noninvasive, and using no ionizing radiation. The technique is also acceptable to patients. It requires no preparation, and examination time rarely exceeds 15 minutes.
Asunto(s)
Neoplasias de la Mama/diagnóstico , Mamografía , Transiluminación/métodos , Neoplasias de la Mama/diagnóstico por imagen , Femenino , HumanosRESUMEN
The sonographic and surgical findings in 180 patients who underwent cholecystectomy for gallbladder disease were reviewed and correlated. Four abnormal groups were established. In Group I, the gallbladder was visible and contained structures which cast an acoustic shadow. In Group II, there was constant shadowing in the region of the gallbladder fossa, but the gallbladder itself was not visible. In Group III, there was a constant, immobile, echo-dense, nonshadowing area in the gallbladder wall. In Group IV, nonshadowing echoes were seen within the gallbladder lumen. The overall accuracy of ultrasound was 98.9%; the false-negative rate was 2.2%, the false-positive rate 2.8%. 5.6% of Group I patients had normal oral cholecystograms. Because of its high accuracy, minimal preparation, speed of diagnosis, and cost-effectiveness, the authors recommend that ultrasonic cholecystography be considered as a screening method, particularly for small polyps (< 4 mm).
