RESUMEN
Usually, cystic mediastinal masses are considered as benign. However, the size of the cyst is of importance, chiefly in a closed space such as the superior mediastinum. Rarely a dramatic symptomatology may develop though this was the case in the two patients we describe, who were admitted in the department. In the first case (a parathyroid cyst), the symptoms were due to a thrombosis of the left innominate vein, and in the second case (a thyroid cyst), the severity was dominated by a dramatic compression of the trachea and the vessels. The contribution of computed tomography is nowadays undisputed. It enables the diagnosis of the cystic nature before surgery. The diagnosis can easily be confirmed by percutaneous drainage.
Asunto(s)
Obstrucción de las Vías Aéreas/etiología , Linfedema/etiología , Quiste Mediastínico/complicaciones , Enfermedad Aguda , Adulto , Brazo , Femenino , Humanos , Masculino , Quiste Mediastínico/diagnóstico por imagen , Tomografía Computarizada por Rayos XAsunto(s)
Adenoma de Células de los Islotes Pancreáticos/diagnóstico , Glucagonoma/diagnóstico , Neoplasias Pancreáticas/diagnóstico , Anciano , Angiografía de Substracción Digital , Colangiopancreatografia Retrógrada Endoscópica , Diagnóstico Diferencial , Humanos , Masculino , Tomografía Computarizada por Rayos X , UltrasonografíaAsunto(s)
Enfermedades del Conducto Colédoco/diagnóstico por imagen , Quistes/diagnóstico por imagen , Pancreatitis/etiología , Anciano , Enfermedad Crónica , Enfermedades del Conducto Colédoco/complicaciones , Enfermedades del Conducto Colédoco/congénito , Quistes/complicaciones , Quistes/congénito , Humanos , Masculino , RadiografíaAsunto(s)
Adenocarcinoma/terapia , Embolización Terapéutica , Neoplasias Renales/terapia , Adulto , Anciano , Aneurisma/terapia , Bélgica , Femenino , Humanos , Masculino , Persona de Mediana EdadRESUMEN
12 staining procedures for myoepithelial cells were compared on normal human breast tissue sections. From this study it appeared that general histological stains have a topographical value but lack real specificity. With other methods, which have been considered more specific, 2 types of pitfalls were encountered. Myoepithelial cells and other substances like basement membranes and reticulum fibers are both stained; in other instances perigalactophoric elastic fibers and myoepithelial fibrils have similar tinctorial properties. The fundaments of the lack of specificity of those histochemical procedures are analyzed.