UroOops3D · Surgical teaching

TURBT: Resection, Staging and Surgical Judgement

A spatial, complication-aware guide to transurethral resection of bladder tumour.

Interactive bladder map & operative flowMap the tumour, then resect with intent — systematic, complete, muscle-sampled.

3D view needs WebGL. Anatomy & presets are still described in the cards →
Drag to orbit · scroll to zoom · pick a tumour preset

Transparent bladder shell with trigone, both ureteric orifices, bladder neck, dome, anterior/posterior/lateral walls, a diverticulum pocket and the obturator nerves running outside each lateral wall.

Tumour presets

Pick a preset

Each preset repositions the lesion and highlights the relevant danger zone and resection considerations.

Operative flow with decision overlays

Visual urethroscopyInspect urethra on the way in — stricture, prostate, false passage.
Full bladder inspectionSystematic survey of all walls, dome, neck — do not tunnel-vision onto the obvious tumour.
Identify both ureteric orificesLocate before resecting; note position relative to tumour and efflux.
Map tumour: number, size, location, morphologySolitary vs multifocal; papillary vs sessile/solid; record for staging tables.
Decide optical enhancementWhite light · NBI · PDD (photodynamic) if available — improves detection of CIS/satellite lesions.
Decide techniqueCold cup · monopolar/bipolar loop · en-bloc resection · roly-ball/fulguration for haemostasis.
Resect tumourShort controlled cuts; orient to the wall; stay aware of the lateral-wall danger zone.
Obtain detrusor muscleSample the deep base unless clearly low-grade Ta — quality marker & staging requirement.
HaemostasisIdentify bleeders; coagulate; confirm clear view before withdrawal.
EUA after resectionRe-assess bimanually for residual mass / fixation.
Catheter · irrigation · intravesical chemo decisionSingle-dose mitomycin where appropriate — withhold if perforation suspected.
Op-note checklistDocument completeness, depth, specimens, complications and onward plan.
Copy op-note checklist +
Pre-filled template — edit inline, then copy.

Danger zonesUreteric orifice & obturator nerve — anticipate before you cut.

Obturator nerve — lateral wall
bladder lumen danger zone tumour obturator n.
Resection current at the lateral wall can stimulate the obturator nerve → sudden adductor jerk → loop dives into / through the wall.
Prevention checklist
Recognise the lateral wall danger zone
Discuss obturator block / paralysis with anaesthetist
Use short, controlled cuts
Lower current if appropriate
Avoid overdistension
Keep the loop visible at all times
Be ready to withdraw the scope
Stabilise the patient's pelvis / legs if needed
Convert strategy if unsafe
Ureteric orifice troubleshooting

Tumour close to, or overlying, a ureteric orifice. Identify the UO first and minimise coagulation around it.

Tumour close to UO

  • Identify the UO first
  • Careful pure cutting current where possible
  • Minimise coagulation around the UO
  • Consider a guidewire before resection if the UO will be obscured
  • Avoid placing a JJ before resection if it risks cutting the stent
  • After resection, look for lumen and efflux

UO resected, lumen visible

  • Document: "UO resected, lumen visible, efflux seen / not seen"
  • Consider JJ stent if: deep resection, solitary kidney, hydronephrosis, uncertain drainage, or heavy coagulation

UO lumen lost

  • Attempt guidewire carefully if safe
  • Consider retrograde study or JJ
  • If not possible & obstruction risk high: post-op imaging; consider nephrostomy / antegrade stent if obstructed

Warning

Do not give immediate intravesical mitomycin if perforation is suspected.

ComplicationsPerforation recognition, escalation and the second-look decision.

Perforation — extraperitoneal vs intraperitoneal
A · Extraperitoneal
perivesical fat limited extravasation
Perivesical fat visible at the defect, limited extravasation.
B · Intraperitoneal
dome defect bowel loops abdominal distension
Dome defect, bowel loops visible, abdominal distension.

Decision tree

Conservative

Fat seen, small, stable, haemostasis achieved, no major distension → catheter drainage, observe, no MMC.

Escalate now

Marked abdominal distension, bowel seen, dome perforation, uncontrolled bleeding, sepsis or pain → urgent consultant escalation, repair / exploration, check for bowel thermal injury.

Document

Perforation type, site, estimated severity, that intravesical chemo was withheld, and the catheter duration plan.

Second-look (re-staging) TURBT

Resect the primary site again within 2–6 weeks when indicated. Triggers:

Incomplete initial TURBT No detrusor muscle (except clear Ta low-grade/G1 or primary CIS) T1 tumour High-risk NMIBC Doubt about completeness

Purpose, EUA & the MIBC pathwayWhy are you doing this TURBT? The answer changes the operation.

Decision · what is the purpose of this TURBT?

Diagnostic and staging

Establish histology, grade and stage; map disease extent.

Complete treatment of NMIBC

Fully resect non-muscle-invasive disease with muscle in the specimen.

Palliation of bleeding

Control haematuria / debulk in unfit or advanced disease.

Debulking before radiotherapy / trimodality

Maximal safe debulk to optimise bladder-preservation outcomes.

Confirmed or strongly suspected MIBC

Tap for the teaching point and op-note reminder.

Aim

If imaging/cystoscopy suggests muscle-invasive disease, the aim is not a heroic full-thickness resection. Aim for safe histological confirmation and staging with detrusor muscle, adequate haemostasis, and debulking if radiotherapy/trimodality therapy is being considered. Send the deep portion separately. Avoid perforation and delay to definitive treatment.

Op-note reminder

Ask the anaesthetist whether the patient appears fit for radical cystectomy / major pelvic surgery and document: ASA, frailty concerns, cardiopulmonary concerns, anticoagulation issues, and whether cystectomy fitness requires formal pre-assessment.

Examination under anaesthesia (EUA)
pelvic floor / examining hand Pre-resection
Bimanual palpation — assess mobility and fixation.

Why

EUA before and after TURBT helps estimate clinical stage and detect fixation / residual induration. Document clearly, but interpret cautiously — clinical staging can overstage or understage.

Op-note fields
MIBC pathway
CT / MRI: suspected MIBC TURBT: staging / debulking MDT Systemic therapy suitability CystectomyvsTrimodality therapy

Specimen quality & stagingSeparate pots, labelled clearly, with detrusor in the deep base.

Specimen tray
POT 1
Exophytic tumour
The visible papillary / solid lesion.
POT 2
Deep base / detrusor muscle
Sent separately — the staging specimen.
POT 3
Edge / margin
If taken.
POT 4
Abnormal mucosa / CIS biopsy
If indicated.
POT 5
Prostatic urethra biopsy
If indicated.

Technique

Send the tumour base / deep detrusor separately, especially in large, multifocal, sessile or suspected invasive tumours. Avoid excessive cautery artefact. Tell pathology what each pot represents.

Bladder wall depth & T-stage
mucosa lamina propria muscularis propria (detrusor) perivesical fat adjacent organ
Tamucosa only (non-invasive papillary)
TaT1T2T3T4

Why detrusor matters

Muscularis propria in the specimen lets pathology distinguish T1 from T2 — without it, the tumour cannot be reliably staged and early-recurrence risk rises.

FRCS viva cardsTap a card to reveal the model answer.

Guidelines & evidenceEAU · NICE · landmark studies.

EAU 2026 +
  • Systematic, complete TURBT
  • EUA before and after
  • Detrusor muscle in the specimen
  • Separate specimens for deep base
  • Defined second-TURBT indications
NICE NG2 / QS106 +
  • Detrusor muscle in the resection
  • Record tumour size & number
  • Consider CT / MRI before TURBT if MIBC suspected
  • Mitomycin at first TURBT when appropriate
  • Repeat TURBT within 6 weeks if no detrusor muscle
FRCS studies +
  • Mariappan — detrusor muscle as a TURBT quality marker & early-recurrence predictor
  • Brausi — institution-level variation in early recurrence after TURBT
  • Sylvester / EORTC — recurrence & progression risk tables
  • Herr & Donat — quality control and restaging TURBT
  • BC2001 — chemoradiotherapy evidence for bladder preservation
  • NIAGARA — modern perioperative systemic therapy update for MIBC
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