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Arab J Urol. 2017 Mar 30;15(2):123-130. doi: 10.1016/j.aju.2017.03.001. eCollection 2017 Jun.

Management of penile cancer in a Singapore tertiary hospital.

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1
Tan Tock Seng Hospital, Singapore, Singapore.

Abstract

OBJECTIVES:

To present our experience of managing penile squamous cell carcinoma (SCC) in a tertiary hospital in Singapore and to evaluate the prognostic value of the inflammatory markers neutrophil-lymphocyte ratio (NLR) and lymphocyte-monocyte ratio (LMR).

PATIENTS AND METHODS:

We reviewed our prospectively maintained Institutional Review Board-approved urological cancer database to identify men treated for penile SCC at our centre between January 2007 and December 2015. For all the patients identified, we collected epidemiological and clinical data.

RESULTS:

In all, 39 patients were identified who were treated for penile SCC in our centre. The median [interquartile range (IQR)] follow-up was 34 (16.5-66) months. Although very few (23%) of our patients with high-risk clinical node-negative underwent prophylactic inguinal lymph node dissection (ILND), they still had excellent 5-year recurrence-free survival (RFS; 90%) and cancer-specific survival (CSS; 90%). At multivariate analysis, higher N stage was significantly associated with worse RFS and CSS. Patients with a high NLR (≥2.8) had significantly higher T-stage (P = 0.006) and worse CSS (P < 0.001) than those with a low NLR. Patients with a low LMR (<3.3) had significantly higher T-stage (P = 0.013) and worse RFS (P = 0.009) and CSS (P < 0.022) than those with a high LMR.

CONCLUSIONS:

Although very few of our patients with intermediate- and high-risk clinical node-negative SCC underwent prophylactic ILND, they still had excellent 5-year RFS and CSS. However, survival was poor in patients with node-positive disease. The pre-treatment NLR and LMR could serve as biomarkers to predict the prognosis of patients with penile cancer.

KEYWORDS:

BMI, body mass index; CIS, carcinoma in situ; CRP, C-reactive protein; CSS, cancer-specific survival; DSNB, dynamic sentinel node biopsy; EAU, European Association of Urology; HPV, human papillomavirus; ILND, inguinal lymph node dissection; IQR, interquartile range; Inflammatory markers; Inguinal; LMR, lymphocyte–monocyte ratio; Lymph node; NCCN, National Comprehensive Cancer Network; NLR, neutrophil–lymphocyte ratio; Penile cancer; Penis; RFS, recurrence-free survival; SCC, squamous cell carcinoma

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