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Difference between revisions of "Seborrheic keratosis"
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The sections show skin with acanthosis, pseudohorn cysts, hyperkeratosis and basal epidermal pigmentation. There are no melanocytic nests. Mitotic activity is not readily apparent. A dermal lymphohistiocytic infiltrate is present. Reactive basal cell changes are present. There is no apparent solar elastosis. The lesion is incompletely | The sections show skin with acanthosis, pseudohorn cysts, hyperkeratosis and basal epidermal pigmentation. There are no melanocytic nests. Mitotic activity is not readily apparent. A dermal lymphohistiocytic infiltrate is present. Reactive basal cell changes are present. There is no apparent solar elastosis. The lesion is incompletely | ||
excised. | excised. | ||
====Wart-like SK==== | |||
The sections show skin with papillomatous acanthosis and, predominantly, basketweave hyperkeratosis. A lesser amount of compact hyperkeratosis and parakeratosis is present. | |||
Koilocytes are not identified. Blood vessels close to the dermal-epidermal junction are not prominent. Pseudohorn cysts are not apparent. | |||
There are no melanocytic nests. There is no apparent solar elastosis. There is a moderate lymphohistiocytic dermal infiltrate. There is minimal basal atypia. Mitotic activity is not readily apparent. | |||
==See also== | ==See also== | ||