Extramammary Paget's Disease of External Genitalia with Bowenoid Features

Abstract

Extramammary Paget's disease (EMPD) is an uncommon intraepithelial adenocarcinoma, primarily affecting the apocrine-bearing skin. Bowen disease is an intraepithelial squamous cell carcinoma having the potential to become invasive carcinoma. The histopathological concomitant features between EMPD and Bowen disease have been described. One theory is that primary EMPD arises multicentrically, within the epidermis from the pluripotent stem cells. Herein, we describe a case of EMPD that had bowenoid features, and review the previous cases associated with the origin of EMPD.

Brain metastasis from cutaneous squamous cell carcinoma coexistent with extramammary Paget's disease: A case report

“…Squamous cell carcinoma or BCC coexistent with EMPD is very rare; our research identified 13 reported cases so far . Three main hypotheses have been proposed for their coexistence among the authors, as follows: (i) EMPD has the potential for metaplastic change into CSCC/Bowen's disease (BD); (ii) the tumors were derived from a common progenitor cell; (iii) the tumors occurred independently.…”

“…Squamous cell carcinoma or BCC coexistent with EMPD is very rare; our research identified 13 reported cases so far. [1][2][3][4][5][6][7][8][9][10][11][12][13] Three main hypotheses have been proposed for their coexistence among the authors, as follows: (i) EMPD has the potential for metaplastic change into CSCC/Bowen's disease (BD); (ii) the tumors were derived from a common progenitor cell; (iii) the tumors occurred independently. The authors who suggested hypotheses (i) or (ii) base their case on the fact that there were tumor cells showing both cell type characteristics morphologically and immunohistochemically.…”

Perianal Paget's disease: a diagnostic dilemma

“…The lesions produced by PPD are similar in appearance to a number of other skin lesions including dermatitis, lichen simplex, psoriasis, eczema, leukoplakia, Bowen’s disease, pagetoid melanoma, basal and squamous cell carcinoma, condylomata acuminata, mycosis fungiodes and the epidermal phase of neuroendocrine carcinoma 3 5 6…”

p63, marcador de diferenciación entre la enfermedad de Bowen pagetoide y la enfermedad de Paget extramamaria

“…Esta distinció n es aú n má s difícil cuando solo pequeñ as biopsias superficiales está n disponibles para su interpretació n, ya que en la actualidad se tiende a dar mayor é nfasis a los resultados cosmé ticos con varias té cnicas «má s rá pidas y menos traumá ticas» que al diagnó stico preciso [6][7][8][9] . Esta distinció n es aú n má s difícil cuando solo pequeñ as biopsias superficiales está n disponibles para su interpretació n, ya que en la actualidad se tiende a dar mayor é nfasis a los resultados cosmé ticos con varias té cnicas «má s rá pidas y menos traumá ticas» que al diagnó stico preciso [6][7][8][9] .…”

“…En algunos casos es imposible la diferenciació n histopatoló gica de ambos procesos y los estudios de IHQ facilitan la diferenciació n. Las cé lulas en PSCCIS son negativas para citoqueratina 7 y CEA, y las cé lulas en el EPEM son positivas para estos inmunomarcadores [6][7][8][9] . En ambos casos se observan abundantes cé lulas pá lidas en toda la epidermis.…”