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Difference between revisions of "Melanocytic lesions"
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Melanocytic lesions (view source)
Revision as of 18:15, 10 September 2012
, 18:15, 10 September 2012→Sign out: +micro section
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===Sign out=== | ===Sign out=== | ||
<pre> | <pre> | ||
SKIN, EXCISION: | SKIN, EXCISION: | ||
- DYSPLASTIC NEVUS WITH MILD NUCLEAR ATYPIA. | - DYSPLASTIC NEVUS WITH MILD NUCLEAR ATYPIA. | ||
- MARGINS NEGATIVE FOR NEVUS CELLS. | - MARGINS NEGATIVE FOR NEVUS CELLS. | ||
</pre> | </pre> | ||
====Micro==== | |||
The sections show hair-bearing skin with a compound melanocytic lesion. The epidermal component extends at least three rete ridges further than the dermal component (shoulder phenomenon). There is bridging between the sides of the rete ridges and lamellar fibrosis. The melanocyte nuclei are approximately the size of the keratinocyte nuclei, and do not have a prominent nucleolus (mild nuclear atypia). | |||
There is no upward scatter of melanocytes and melanocytes in the dermis are mature. No mitotic activity is appreciated. | |||
==Neurocristic hamartoma== | ==Neurocristic hamartoma== | ||