[Ultrasound-guided percutaneous external catheterization-drainage of pancreas-related fluid collections].

: The authors have extended the diagnostics indispensable in drainage of pancreatic fluid collections by intracavitary invasive methods. In five patients exfoliative cytology, in to patients target biopsy and in other two septotomy were performed. Intracavitary invasive diagnostic and therapeutic methods may be useful complementary tools with the traditional technique. They can easily and effectively be carried out without complications if their utilization is well indicated. They may increase diagnostic accuracy and decrease discomfort of the patient in therapy.