[Infundibulotomy of the Vater's ampulla at impacted stone in the papilla]. / Infundibulotomía de la ampolla de Vater en cálculo impactado en la papila.

Infundibullotomy or the method of endoscopic choledochoduodenostomy is an alternative to surgical bilio-digestive anastomosis for common bile duct obstructions due to impacted stone in the ampulla de Vater when occasionally standard endoscopic sphincterotomy was unsuccessful. In addition the endoscopic choledochoduodenostomy is a method described as final palliative treatment in elderly patients and/or those as high operative risk with malignant obstructions in the distal part of the common bile duct.

[Crossed immunoelectrophoresis in the serological diagnosis of amebiasis]. / Estudio de la immunoelectroforésis cruzada en el diagnóstico serologico de la amibiásis

Sixty-two patients were divided into two groups, and their sera was analyzed. a) In the first series, a study was made of the sera of patients with hepatic abscess wherein tests were positive in 100% of the cases. b) In the second serie, a study was made of the sera of patients with evidence of amoebiasis wherein tests were negative in 100% of the cases. Evaluation and diagnoses of patients were performed on the basis of clinical, radiological, scintillogram, coprological and endoscopic examinations.