Is really necessary change TNM classification for penile cancer?

Is really necessary change TNM classification for penile cancer?

8th European Multidisciplinary Meeting on Urological Cancers, 24-27 November 2016, Milan, Italy P159 Is really necessary change TNM classification f...

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8th European Multidisciplinary Meeting on Urological Cancers, 24-27 November 2016, Milan, Italy

P159

Is really necessary change TNM classification for penile cancer? Eur Urol Suppl 2016; 15(13);e1760

Scavuzzo A.1, Reynoso Noveron N2, Martinez-Cervera P.1, Santana Rios Z.1, Jimenez-Rios M.A.1 1

Instituto Nacional De Cancerologia, Dept. of Urology, Mexico City, Mexico, 2Instituto Nacional De Cancerologia, Dept. of Epidemiology, Mexico City, Mexico INTRODUCTION & OBJECTIVES: Currently there is debate about proposal modification category T2 in T2a with spongiosum-only invasion and T2b with tunica and/or corpus cavernosum invasion for penile cancer. Leijte et all suggest that survival of T3 was higher than T2b (67.7% vs 52.6%) and there is difference in survival between T2a and T2b. The aim of the present study was to describe clinical and pathological characteristics and Cancer Specific Survival (CSS). MATERIAL & METHODS: The records of 378 pts with penile cancer, treated at National Cancer Institute (INCan) of Mexico City, between January 1989-December 2015, were analysed. Survival in the different categories was compared using Kaplan-Meier analysis and the log rank test. Statistical analysis was performed with SSPS 22 (SPSS Inc., Chicago, IL, USA) and R statistical package v.3.2. RESULTS: The average time of follow-up was 30 months (IQR 2-156). The table 1 shows patient characteristics at presentation. At initial presentation, 163 (43.1%) had clinically palpable nodes (cN+) bilaterally, 71 (18%) cN+unilateraly and 111 (29%) without clinically palpable nodes. pT1a presented as ulcerative lesions (42.9%), verrucous subtype (35.7%),pT2- pT3 had 30% and 34.6% of verrucous carcinoma. Between stage pT2, 66.67% (n. 76/120) present infiltration to corpus spongiosum and 71,05% to corpus cavernosum (n. 81/120). 84.7% had SCC and 4, 5% other histological types. Median lesion size was 2.8 cm (range 0,5 -15). 14% pts were not candidates for surgery due to large tumors and cN3. Lymphadenectomy performed in 137 patients (36.2%). 121 patients were alive and diseasefree; while 79 (20.9%) died of penile cancer. The 5-year CSS for all patients was >75.04%. Figure 1- 2 shows Kaplan-Meier curves of T category; significant difference in survival was found between pT2 and pT3 (p 0.047). A 5 yrs CSS classified by T categories was: pT1 96,67%, pT2: 88,27%, pT3: 58,47%, pT4 0%. A 5 yrs CSS for T2 with infiltration to corpus spongiosum was: 80,86%; for T2 with infiltration to corpus cavernosum was 87,84% (p 0.953). CSS among the pN categories: pN1= 100%, pN2= 50%, pN3= 33%, pN0: 99%.

Eur Urol Suppl 2016; 15(13);e1760

8th European Multidisciplinary Meeting on Urological Cancers, 24-27 November 2016, Milan, Italy

P159

Is really necessary change TNM classification for penile cancer? Eur Urol Suppl 2016; 15(13);e1761

Eur Urol Suppl 2016; 15(13);e1761

8th European Multidisciplinary Meeting on Urological Cancers, 24-27 November 2016, Milan, Italy

P159

Is really necessary change TNM classification for penile cancer? Eur Urol Suppl 2016; 15(13);e1762

Eur Urol Suppl 2016; 15(13);e1762

8th European Multidisciplinary Meeting on Urological Cancers, 24-27 November 2016, Milan, Italy

P159

Is really necessary change TNM classification for penile cancer? Eur Urol Suppl 2016; 15(13);e1763

Table 1 Mean age pT stage Tis T1a T1b T2 T3 T4 Tx Nstage pN0 pN1 pN2 pN3 pNx cN 1-3 cM M0 M1 Mx Grade G1 G2 G3-4 Gx Surgical treatment Partial penectomy Total penectomy Circuncision Resection of lesion Biopsy/ Topical 5-fluorouracil cream 5% No surgery Refused surgical treatment

N=378 Pts ( %) 56.8 ± 15.05 (range 23-98) 5 (1.3%) 42 (11.1%) 36 (9.5%) 120 ( 31.7) 81 (21.4%) 18 (4.8%) 76 (20.1%) 90 ( 23%) 33 ( 8,7%) 19 ( 5.2%) 18 ( 4,7%) 136 ( 35,9%) 82 ( 21%) 272( 72%) 52 ( 13. 8%) 54 ( 14. 3%) 93 ( 24.6%) 204 ( 54 %) 33 (8.2%) 48 (12.7%) 123 ( 32.5%) 125 ( 32.5) 16 ( 4.2%) 21 (5.6%) 17 ( 4.5%) 53 ( 14 %) 20 ( 5.3%)

CONCLUSIONS: We found a significant difference in survival between T3 and T2 and don’t difference in subcategory of pT2. The current TNM classification is adequate to differentiate in terms of survival.

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