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Percutaneous nephrostomy diagram

Case contributed by: Dr Omar Bashir

From the case: Percutaneous nephrostomy diagram

Modality: Diagram

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The diagram illustrates key steps in nephrostomy.

Puncture of a calyx (usually lower pole) using a hollow needle.
Insertion of a guidewire through the needle after confirming the needle tip location with contrast.
Insertion of a pigtail drain within the renal pelvis.