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Arch Dermatol. 2008;144(8):1051-1056.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Diagnosis: Poroma.

MICROSCOPIC FINDINGS AND CLINICAL COURSE

Histologic examination revealed a large, symmetric neoplasm consisting of digitated epidermal hyperplasia with hypergranulosis (Figure 2). In the dermis, there were collections of small epithelial cells with uniform nuclei and scant cytoplasm, in which there were occasional small ductal and tubular structures (Figure 3). There were prominent anastomoses between the epithelial collections of cells and the epidermis. The stroma was vascular and slightly edematous. The lesion was fully excised, with no recurrence noted after 2 years.

Figure appears in full text version. Figure 2.

Figure appears in full text version. Figure 3.

DISCUSSION

Poromas are uncommon adnexal neoplasms first described by Goldman et al¹ in 1956. They present as solitary, slow growing papules in adults older than 40 years,² though cases have been reported in children.³ Initially, poromas were thought to arise predominantly on acral sites, where the concentration of eccrine glands is the highest,⁴ which is still a popular-held belief. However, a more recent study of 353 cases . . . [Full Text of this Article]

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