Laparoscopy For The Calyceal Diverticulum Technique And Results

Christopher S. Ng

Minimally Invasive Urology Institute, Cedars-Sinai Medical Center, Los Angeles, California, U.S.A.

■ BACKGROUND

Step 5: Excision of Overlying Renal Parenchyma

■ INDICATIONS FOR UROLOGIC INTERVENTION

Step 6: Nephrolithotomy

■ UROLOGIC TREATMENT MODALITIES

Step 7: Identification and Management of Calyceal Diverticular Infundibulum

■ PATIENT AND TREATMENT SELECTION Transperitoneal vs. Retroperitoneal Laparoscopic Access

Step 8: Management of Calyceal Diverticular Epithelium

■ PREOPERATIVE PREPARATION

■ TECHNIQUE: LAPAROSCOPIC CALYCEAL DIVERTICULECTOMY

Step 1: Cystoscopic Placement of Ureteral Catheter

Step 9: Obliteration of Diverticular Cavity

Step 10: Drain Placement and Exit Step 11: Ureteral Stent Placement

Step 2: Laparoscopic Access

Step 3: Operative Exposure

■ POSTOPERATIVE MANAGEMENT

■ REFERENCES

Step 4: Identification of Calyceal Diverticulum

A calyceal diverticulum is an anomalous intrarenal cavity lined by nonsecretory transitional cell epithelium that communicates with the normal collecting system via a narrow diverticular neck.

It is important to differentiate a calyceal diverticulum from a hydro calyx, which is a true calyx with its own renal papilla that has become severely dilated due to congenital or acquired infundibular obstruction.

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