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Difference between revisions of "Atypical lentiginous nevus"
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Atypical lentiginous nevus (view source)
Revision as of 09:29, 26 August 2013
, 09:29, 26 August 2013→Microscopic: tweak
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*Elongated rete ridges - '''key feature'''. | *Elongated rete ridges - '''key feature'''. | ||
*Superficial dermal fibrosis, diffuse (non-lamellar) - '''important'''. | *Superficial dermal fibrosis, diffuse (non-lamellar) - '''important'''. | ||
*Mild-to-moderate cytologic atypia. | *Mild-to-moderate cytologic atypia, focal. | ||
Notes:<ref name=pmid22421501/> | |||
*Rarely dermal nests. | |||
*Mild-to-moderate inflammation. | |||
*Mitoses - never. | |||
DDx:<ref name=pmid22421501/> | DDx:<ref name=pmid22421501/> | ||
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*[[Dysplastic nevus]] - lamellar fibrosis. | *[[Dysplastic nevus]] - lamellar fibrosis. | ||
*[[Lentigo simplex]]. | *[[Lentigo simplex]]. | ||
*[[Lentigo maligna]]. | *[[Lentigo maligna]] - more atypia, upward migration of melanocytes, occasional mitoses. | ||
*[[Solar lentigo]]. | *[[Solar lentigo]] - [[solar elastosis]]. | ||
*[[Lentiginous nevus]]. | *[[Lentiginous nevus]]. | ||