PCNL · Recognition · D11

The needle in the neck

Allow about two minutes for two rounds. This scenario is teaching content; the score supports revision and does not assess clinical competence.

PCNLRecognition · Core

The scenario

  • Prone PCNL, lower-pole access.
  • Retrograde contrast outlines the collecting system.
What you see
  • The needle enters the kidney and urine returns.
  • On the screen the tip sits in the narrow part of the system between the calyx and the pelvis.
Plate from the linked animation. Schematic to come: calyx, infundibulum and pelvis in profile, with the needle tip
Schematic to come: calyx, infundibulum and pelvis in profile, with the needle tipSchematic pending
Open the animation

Teaching only · not for diagnosis or treatment decisions