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Difference between revisions of "Melanocytic lesions"
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Melanocytic lesions (view source)
Revision as of 19:58, 15 September 2012
, 19:58, 15 September 2012→Sclerosing melanocytic nevus: expand micro
(→Sclerosing melanocytic nevus: expand micro) |
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*Trizonal - may be described as a ''sandwich'': | *Trizonal - may be described as a ''sandwich'': | ||
*# [[Junctional melanocytic nevus|Junctional]] ''or'' [[compound nevus]]. | *# [[Junctional melanocytic nevus|Junctional]] ''or'' [[compound nevus]]. | ||
*#* May have pagetoid spread of melanocytes, i.e. non-basal melanocytes in the epidermis. | |||
*#* Cannot have cytologic atypia - presence of cytologic atypia in this layer makes it [[melanoma]]. | |||
*# Fibrotic tissue with irregular melanocytic nests. | *# Fibrotic tissue with irregular melanocytic nests. | ||
*# Nevus below scar. | *# Nevus below scar - may be [[common melanocytic nevus|common]], congential-type, [[dysplastic nevus|dysplastic]], [[spitz nevus|Spitz]]. | ||
DDx: | DDx: | ||