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Difference between revisions of "Seborrheic keratosis"
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SKIN LESION, MID BACK, BIOPSY: | SKIN LESION, MID BACK, BIOPSY: | ||
- SEBORRHEIC KERATOSIS. | - SEBORRHEIC KERATOSIS. | ||
</pre> | |||
<pre> | |||
SKIN LESION, RIGHT SCAPULA, PUNCH BIOPSY: | |||
- RETICULATED SEBORRHEIC KERATOSIS. | |||
</pre> | </pre> | ||
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====Minimal hyperkeratosis==== | ====Minimal hyperkeratosis==== | ||
The sections show skin with acanthosis, pseudohorn cysts, rare parakeratosis, minimal hyperkeratosis and focal basal epidermal pigmentation. There is no basal nuclear atypia, no appreciable mitotic activity and there are no melanocytic nests. There is minimal dermal inflammation. Solar elastosis is present. | The sections show skin with acanthosis, pseudohorn cysts, rare parakeratosis, minimal hyperkeratosis and focal basal epidermal pigmentation. There is no basal nuclear atypia, no appreciable mitotic activity and there are no melanocytic nests. There is minimal dermal inflammation. Solar elastosis is present. | ||
====Reticulated seborrheic keratosis==== | |||
The sections show hair-bearing skin with fine strands of benign basaloid epidermal cells | |||
extending from the epidermis. The superficial dermis has dense collagen. No | |||
significant inflammation is present. Pseudohorn cysts are present focally. | |||
There is no hyperkeratosis or acanthosis. No pigmentation is apparent. No large blood | |||
vessels are identified. No nuclear atypia is seen. | |||
==See also== | ==See also== | ||