Porocarcinoma with perineural invasion - PubMed (original) (raw)

Case Reports

Porocarcinoma with perineural invasion

Ciara A Maguire et al. Indian Dermatol Online J. 2015 Mar-Apr.

Abstract

Herein we present the case of a 58 year old woman with porocarcinoma of the left forehead with perineural invasion, diagnosed after recurrence of previously excised benign poroma. This case serves as a reminder of the potential of malignant degeneration within long-standing benign adnexal tumors as well as the spectrum of histological features that may be seen in porocarcinoma.

Keywords: Perineural invasion; porocarcinoma; sweat gland neoplasm.

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Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1

Figure 1

(a) Patient during her first presentation, bluish papule on the forehead approximately 6 mm in diameter, (b) Recurrence of the lesion as a much larger nodule in June 2012

Figure 2

Figure 2

Small, well-circumscribed, slightly eroded adnexal neoplasm connected with the epidermis. H and E, ×40

Figure 3

Figure 3

Neoplasm consisting of poroid and cuticular cells, with ductal differentiation. H and E, ×200

Figure 4

Figure 4

Ductal cells, some with abundant pink cytoplasm. H and E, ×400

Figure 5

Figure 5

Mostly circumscribed epithelial proliferation with ductal differentiation. H and E, ×40

Figure 6

Figure 6

Irregular focus with separate islands of cellular proliferation. H and E, ×40

Figure 7

Figure 7

Separated islands of cellular proliferation with similar ductal differentiation. H and E, ×200

Figure 8

Figure 8

Cells of the proliferation with abundant pink cytoplasm and nuclear atypia and numerous mitotic figures. H and E, ×200

Figure 9

Figure 9

Perineural invasion by atypical cells with abundant pink cytoplasm. H and E, ×400

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