Clinical characteristics and survival outcomes of perianal Paget’s disease:A SEER population-based study

摘要

cqvip:Objective The aim of the study was to analyze the clinical features of patients with perianal Paget’s disease(PPD)and investigate prognosis risk factors.Methods The SEER*Stat software was used to identify 116 PPD patients from 1975 to 2015 in the SEER research database.The Kaplan-Meier method was used to conduct a univariate analysis for PPD patients.The differences in survival rates were evaluated using the log-rank test.The differences in the clinicopathological features of PPD patients with or without anorectal carcinoma were compared using the chi-square test.Results The median survival time of PPD patients was 44 months.The median age of onset was 73 years old.The 43.10%of the patients were alive at the end of follow up,and only 12.93%of the patients died of PPD.Elderly(age>70 years;χ^2=9.453,P=0.002),poor differentiation(χ^2=46.557,P=0.000)and abdominal perineal resection(APR;χ^2=46.557,P=0.000)were unfavorable risk factors of prognosis.Nearly 50%of PPD had combined with other malignancies,and over 22.41%of those had multiple primary neoplasms(3 or more).PPDs predisposed concurrent malignancy,and 48.21%of PPD patients with other malignancies combined with anorectal carcinoma in the study.Stage(χ^2=10.127,P=0.018),and surgical method(χ^2=12.245,P=0.007)were statistically significant in the PPD patients with or without anorectal carcinoma.The 16.07%of patients had multiple lesions of Paget’s.Conclusion Patients with PPD have a favorable survival,while the disease-specific mortality is low.Diagnosed age,differentiation,and surgical methods were the influence factors of prognosis in PPD patients.PPDs with anorectal carcinoma is of most important in further investigation.