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Difference between revisions of "Melanocytic lesions"
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====Compound==== | ====Compound==== | ||
<pre> | |||
SKIN LESION, BACK, EXCISION: | |||
- DYSPLASTIC COMPOUND NEVUS WITH MILD CYTOLOGIC ATYPIA AND MILD ARCHITECTURAL ATYPIA, | |||
COMPLETELY EXCISED IN PLANE OF SECTION (2 MM CLEARANCE). | |||
</pre> | |||
<pre> | <pre> | ||
SKIN LESION, CENTRAL BACK, EXCISION: | SKIN LESION, CENTRAL BACK, EXCISION: | ||
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- NEAREST MARGIN (LATERAL MARGIN) 6 MM. | - NEAREST MARGIN (LATERAL MARGIN) 6 MM. | ||
</pre> | </pre> | ||
=====Micro===== | =====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 | 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 cytologic atypia). | ||
There is no upward scatter of melanocytes and melanocytes in the dermis are mature. No mitotic activity is appreciated. | There is no upward scatter of melanocytes and melanocytes in the dermis are mature. No mitotic activity is appreciated. | ||