Herrel LA, Weiss AD, Goodman M, Johnson TV, Osunkoya AO, Delman KA, Master VA. Extramammary Paget’s disease in males: survival outcomes in 495 patients. Ann Surg Oncol. 2015 May;22(5):1625-30.
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Results: Incidence rates of EMPD in men have been increasing with an annual percent change of +3.2 % (p < .0002) since 1978. Incidence of EMPD in blacks was nearly four times lower (p = .0003) and in Asians/Pacific islanders four times higher (p < .0001), relative to whites. Overall survival among 495 patients was 60.2 % at 120 months post-diagnosis. On multivariate analysis, significant factors negatively impacting survival were primary site in the perianal region compared to penoscrotal and truncal lesions (both p < .001), age older than 75 years (p < .001), and presence of distant versus localized disease (p = .018). Survival did not differ by race or presence of additional cancer.
Conclusions: Survival in men with EMPD is lower among those with distant disease and primary tumors located in the perianal region. The reasons for increasing EMPD incidence over time and for the racial disparities in disease occurrence require further study.