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OBG · Gynaecological oncology: stage IVA cervical cancer
Sample itemA woman with locally advanced cervical cancer has haematuria. What is required to diagnose bladder mucosal invasion (stage IVA)?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Cystoscopy with biopsy confirming invasion of the bladder mucosa
In FIGO staging, stage IVA is tumour invasion of the bladder or rectal mucosa, and it must be confirmed by biopsy, as bullous oedema of the bladder alone does not indicate invasion. Cystoscopy and sigmoidoscopy are used in advanced disease. Pelvic exenteration or chemoradiation is then considered.
Option by option
A. Cystoscopy with biopsy confirming invasion of the bladder mucosa (correct)
Correct. Biopsy-proven mucosal involvement is required.
B. Urine cytology alone
Urine cytology cannot stage disease.
C. Bullous oedema on imaging alone
Bullous oedema alone does not prove invasion.
D. Serum creatinine
Creatinine reflects renal function and not bladder invasion.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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