ABSTRACT
During the last decade, helical CT revolutionized diagnostic imaging. Advanced computational programs now available allow creation of automatic 3D model of the tracheobronchial tree, making possible endotracheal and bronchial navigation similar to real fibrobronchoscopy virtual bronchoscopy (VB) is useful in the study of fixed stenosis of the airway distal to the lesion, something that cannot always be achieved with real fibrobronchoscopy. VB can also show the adjacent mediastinal structures simultaneously represents a great advantage of this technique. If its use gives relevant information for patient management is something yet to demonstrate in prospective studies
Subject(s)
Humans , Bronchoscopy , Lung Diseases, Obstructive , Predictive Value of Tests , Echocardiography, Three-Dimensional , Bronchoscopes , ThoraxABSTRACT
Los quistes broncogénicos son alteraciones congénitas del árbol traqueo-bronquial y son, generalmente, un hallazgo incidental en radiográfias de tórax realizadas por rutinas donde se manifiestan como masas bien delimitadas, de bordes lisos, ubicadas cerca de la carina (1). En Tomografía Computada (TC) se presentan como masas esféricas de atenuación semejante al agua o a tejidos blandos (2). Cuando presentan densidad de tejidos blando a la diferenciación con otras lesiones puede ser completa y la Resonancia Magnética (RM) suele ser de gran ayuda. El aspecto en imagenología seccional es generalmente diagnóstico. Los autores presentan dos casos clínicos que demuestran el espectro de presentación de esta patología, uno pesquisado en TC y corroborado por RM y el segundo detectado Rx de tórax y confirmado en TC. Ambos fueron removidos quirúrgicamente
Subject(s)
Humans , Female , Adult , Middle Aged , Bronchogenic Cyst/congenital , Mediastinal Cyst , Scapula/physiopathology , Magnetic Resonance Spectroscopy , Bronchogenic Cyst/surgery , Bronchogenic Cyst , Radiography, Thoracic , Thoracoscopy , ThoracotomyABSTRACT
Gallbladder stats apparently plays an important role in the pathogenesis of cholelithiasis during pregnancy. On the other hand, gallstones diagnosed immediatly after delivery disappear spontaneously during late puerperium in one third of these patients. Gallbladder emptying was assessed by biliary scintigraphy and ultrasonography in normal, multiparous volunteers. The two methods had an excellent correlation: thence, we used ultrasonography to determine gallbladder volume and contraction in pregnant and puerperal women. Fasting and postpandrial residual volumes were significantly larger during pregnancy, while the kinetics of gallbladder emptying was similar in nulliparous and pregnant women. During puerperium, gallbladder volume returned to the values observed in nulliparae; but the kinetics of emptying was significantly faster, suggesting an increased sensitivity of gallbladder muscle to physiologic stimuli