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Difference between revisions of "Melanocytic lesions"
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→Lentiginous melanocytic lesions
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=Lentiginous melanocytic lesions= | =Lentiginous melanocytic lesions= | ||
==Ephelis== | |||
:This is ''not'' a melanocytic lesion. It here as its in the [[differential diagnosis]] of pigmented skin lesions. | |||
*[[AKA]] ''freckle''. | |||
===General=== | |||
*Benign. | |||
===Gross=== | |||
*Flat pigmented lesions. | |||
*Typically in sun exposed areas. | |||
Image: | |||
*[http://commons.wikimedia.org/wiki/File:Freckled.jpg Freckles (WC)]. | |||
===Microscopic=== | |||
Features:<ref name=Ref_DCHH287>{{Ref DCHH|287}}</ref> | |||
*Basal pigmentation of keratinocytes. | |||
*Normal numbers of melanocytes. | |||
*Normal rete ridges. | |||
DDx: | |||
*[[Solar lentigo]] - long rete ridges and solar damage. | |||
*[[Simple lentigo]] - long rete ridges. | |||
*[[Neurofibromatosis|Café-au-lait spots]].<ref name=Ref_DCHH287>{{Ref DCHH|287}}</ref> | |||
==Lentigo simplex== | ==Lentigo simplex== | ||
*[[AKA]] ''simple lentigo''.<ref>URL: [http://www.dermnetnz.org/lesions/lentigo-simplex.html http://www.dermnetnz.org/lesions/lentigo-simplex.html]. Accessed on: 27 March 2013.</ref> | *[[AKA]] ''simple lentigo''.<ref>URL: [http://www.dermnetnz.org/lesions/lentigo-simplex.html http://www.dermnetnz.org/lesions/lentigo-simplex.html]. Accessed on: 27 March 2013.</ref> | ||