A 72-year-old man presents to the urology clinic with a one-week history of painless gross hematuria. He has a 40-pack-year smoking history. Vital signs are within normal limits, and physical examination is unremarkable. Office flexible cystoscopy reveals a completely normal bladder mucosa and urethra. Urine cytology returns positive for high-grade malignant cells. Arrange the following interventions in the correct chronological order for the definitive evaluation and management of this patient's condition.
- 1Computed tomography (CT) urography
- 2Diagnostic ureteroscopy with biopsy of the upper urinary tract lesion
- 3Radical nephroureterectomy with excision of a bladder cuff
- 4Single-dose postoperative intravesical chemotherapy
Cevap
The correct chronological sequence is: Computed tomography (CT) urography, followed by Diagnostic ureteroscopy with biopsy, then Radical nephroureterectomy with excision of a bladder cuff, and finally Single-dose postoperative intravesical chemotherapy.
The patient's presentation of painless gross hematuria with positive cytology but normal bladder mucosa localizes the source of the malignant cells to the upper urinary tract (renal pelvis or ureters). The diagnostic sequence begins with non-invasive localization (CT urography), followed by endoscopic tissue confirmation (ureteroscopy with biopsy). For confirmed high-grade upper tract urothelial carcinoma (UTUC), the definitive surgical standard is radical nephroureterectomy, which must include excision of a bladder cuff to prevent distal ureteral recurrence. Finally, the sequence concludes with postoperative intravesical chemotherapy to mitigate the high risk of subsequent bladder tumor seeding.
Adım Adım Çözüm
Anahtar Kavram
Diagnostic and therapeutic sequencing for Upper Tract Urothelial Carcinoma (UTUC)