Difference between revisions of "Melanocytic lesions"
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*"Maturation" in the context of melanocytic lesions ''means'' (1) the cells get smaller with depth, (2) cells are less mitotic with depth. | *"Maturation" in the context of melanocytic lesions ''means'' (1) the cells get smaller with depth, (2) cells are less mitotic with depth. | ||
== | ==Melanocytic nevus== | ||
===General=== | ===General=== | ||
*Benign. | |||
*Think ''melanoma''. | *Think ''melanoma''. | ||
*In common language: ''mole''. | |||
Clinical: ''ABCD'' = asymmetric, borders (irregular), colour (black), diameter (large). | Clinical: | ||
*''ABCD'' = asymmetric, borders (irregular), colour (black), diameter (large). | |||
===Microscopic=== | ===Microscopic=== | ||
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**Smaller cells with depth. | **Smaller cells with depth. | ||
**Smaller nests with depth. | **Smaller nests with depth. | ||
*Rare mitoses (superficial). | *Rare mitoses (superficial). | ||
**No deep mitoses. | **No deep mitoses. | ||
*No destruction of surrounding structures. | *No destruction of surrounding structures. | ||
*No nucleoli. | *No nucleoli. | ||
====Subtypes==== | |||
=====Compound nevus===== | |||
*In the dermis '''and''' epidermis - '''key feature'''. | |||
=====Junctional nevus===== | |||
*In the epidermis - '''key feature'''. | |||
=====Intradermal nevus===== | |||
*[[AKA]] ''dermal nevus'', [[AKA]] ''intradermal melanocytic nevus''. | |||
*Only in the dermis - '''key feature'''. | |||
==Recurrent nevus== | ==Recurrent nevus== | ||