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Arch Dermatol. 2004;140:609-614.

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

Diagnosis: Dermal duct tumor.

MICROSCOPIC FINDINGS

A biopsy specimen of the lesion demonstrated well-defined dermal nodules of basaloid cells with foci of glycogenation, necrosis, and hemorrhage. Duct formation was observed.

DISCUSSION

In 1966, Winkelmann and McLeod¹ described the dermal duct tumor as a distinct dermal tumor composed of masses of adnexal duct tissue. There is some controversy as to whether dermal duct tumor is a distinct entity from a poroma. Tumor size ranges from a few millimeters to 2 cm, and most lesions appear as flesh-colored or red papules and plaques.^1-4 The majority occur in adult women in the head and neck region.^1-3 In older men, the tumors often appear on the legs or arms.^4-6

Histologically, dermal duct tumors demonstrate a minor amount of peripheral palisading in the middle to lower dermis. Depending on the amount of glycogen, cells may appear pale or basophilic. Cysts may occur that contain no keratin and are either devoid of contents . . . [Full Text of this Article]

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Nodule on the Back of a 73-Year-Old Woman—Case
Rebecca Lintner, Erum N. Ilyas, David Elder, and Warren Heymann
Arch Dermatol. 2004;140(5):609-614.
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