Difference between revisions of "Melanocytic lesions"

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445 bytes added ,  15:55, 5 September 2013
(→‎Blue nevus: +images, +link to images)
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The pigmented cells are negative on the Prussian blue stain.
The pigmented cells are negative on the Prussian blue stain.
=====Sclerosing blue nevus=====
The sections show pigmented spindle cells in the dermis between densely packed collagen fibres. The spindle cells show no significant nuclear atypia, and no mitotic activity is appreciated.  The lesion extends up to the epidermis; however, it does not appear to involve the epidermis. There are no melanocyte nests. There is no significant inflammation. The lesion is completely excised in the plane of section.


==Cellular blue nevus==
==Cellular blue nevus==
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