BJU international · 2025
Evaluating follow-up in patients with lymph node-negative penile cancer at a high-volume centre.
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Vreeburg Manon T A, Vaessen Gerben M, de Vries Hielke M, Heeres Birthe C, van Dijk-de Haan Margriet C, van der Noort Vincent, van Muilekom Erik H, van Kesteren Jolien, Graafland Niels M, Hendricksen Kees, van Rhijn Bas W G, van der Poel Henk G, Brouwer Oscar R
Аннотация
OBJECTIVES: To evaluate the current European Association of Urology/American Society of Clinical Oncology follow-up (FU) schedule with routine use of ultrasonography (US) ± US-guided fine-needle aspiration cytology (FNAC) in patients with lymph node (LN)-negative penile squamous cell carcinoma (PSCC).
PATIENTS AND METHODS: We evaluated FU outcomes for low-risk clinically LN-negative (cN0) and intermediate- to high-risk sentinel node (SN) negative (pathological N-stage [pN]0) patients with PSCC at a high-volume centre. We analysed routine inguinal US ± FNAC (in case of a suspicious LN) during FU. A competing risk analysis was performed to calculate the cumulative risk of LN metastases in these groups, with local recurrence as competing risk.
RESULTS: A total of 201 patients with PSCC were analysed, with 2694 inguinal US investigations being evaluated. FNAC was performed during 270 US procedures (10.0%). A LN metastasis was found in four of 270 US + FNAC procedures (1.5%, 0.2% of all US). All tumours were intermediate- to high-risk tumours. Three occurred within the first year after primary treatment, and one at 20 months. The cumulative risk of developing LN metastases in cN0 low-risk tumours was 0% (no events occurred) and in SN-negative intermediate- to high-risk group 2.0%, both at 1 year of FU. Two (out of four) patients with LN recurrence died from disease.
CONCLUSION: After adequate staging and treatment, patients with cN0/pN0 PSCC rarely develop LN metastasis during FU. As these metastases generally occur within 1 year after treatment, we recommend (3-monthly) routine inguinal US only during the first year of FU. Thereafter, the frequency of FU visits and examinations can be reduced in patients capable of self-examination of the penis, resulting in a substantial (up to a 50%) reduction of FU visits compared to current guideline recommendations.
PATIENTS AND METHODS: We evaluated FU outcomes for low-risk clinically LN-negative (cN0) and intermediate- to high-risk sentinel node (SN) negative (pathological N-stage [pN]0) patients with PSCC at a high-volume centre. We analysed routine inguinal US ± FNAC (in case of a suspicious LN) during FU. A competing risk analysis was performed to calculate the cumulative risk of LN metastases in these groups, with local recurrence as competing risk.
RESULTS: A total of 201 patients with PSCC were analysed, with 2694 inguinal US investigations being evaluated. FNAC was performed during 270 US procedures (10.0%). A LN metastasis was found in four of 270 US + FNAC procedures (1.5%, 0.2% of all US). All tumours were intermediate- to high-risk tumours. Three occurred within the first year after primary treatment, and one at 20 months. The cumulative risk of developing LN metastases in cN0 low-risk tumours was 0% (no events occurred) and in SN-negative intermediate- to high-risk group 2.0%, both at 1 year of FU. Two (out of four) patients with LN recurrence died from disease.
CONCLUSION: After adequate staging and treatment, patients with cN0/pN0 PSCC rarely develop LN metastasis during FU. As these metastases generally occur within 1 year after treatment, we recommend (3-monthly) routine inguinal US only during the first year of FU. Thereafter, the frequency of FU visits and examinations can be reduced in patients capable of self-examination of the penis, resulting in a substantial (up to a 50%) reduction of FU visits compared to current guideline recommendations.