Difference between revisions of "Melanocytic lesions"

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Melanocytic lesions (view source)

Revision as of 04:27, 25 January 2014

1,344 bytes removed ,  04:27, 25 January 2014
→‎Common melanocytic nevus: split-out
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====Compound melanocytic nevus====
====Compound melanocytic nevus====
<pre>
{{Main|Compound nevus}}
SKIN LESION, RIGHT NECK, SHAVE BIOPSY:
- BENIGN COMPOUND NEVUS.
</pre>
 
=====Micro=====
The sections show melanocytes in the dermis and epidermis. The lesion is symmetrical in its architecture and pigment distribution. There is no pagetoid spread of melanocytes in the epidermis. Superficially, melanocytes are in nests. Melanocytes show no apparent cytologic atypia and mature with depth. No mitotic activity is appreciated.
 
The lesion is completely excised in the plane of section.
 
======Barely compound======
The sections show melanocytes predominantly in the dermis. Rare melanocytic nests are seen at the dermal-epidermal junction. There is no pagetoid spread of melanocytes in the epidermis. The lesion is symmetrical in its architecture. Superficially, melanocytes are in nests and pigment is present.  The melanocytes mature with depth. No mitotic activity is appreciated.
 
The lesion is present at the margin.
 
======CN with congenital features======
The sections show melanocytes in the dermis and epidermis. There is no pagetoid spread of melanocytes in the epidermis. Superficially, melanocytes are in nests. Melanocytes show mild nuclear enlargement but mature with depth. Nucleoli are not prominent. Melanocytes are found adjacent to adnexal structures and blood vessels. No mitotic activity is appreciated. The lesion is incompletely excised.


====Intradermal melanocytic nevus====
====Intradermal melanocytic nevus====
Michael
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