Difference between revisions of "Papillomatous nevus"
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==General== | ==General== | ||
*Rare. | *Rare. | ||
*Predominantly in females - thought to be estrogen-related.<ref name=pmid8594078>{{Cite journal | last1 = Morgan | first1 = MB. | last2 = Raley | first2 = BA. | last3 = Vannarath | first3 = RL. | last4 = Lightfoot | first4 = SL. | last5 = Everett | first5 = MA. | title = Papillomatous melanocytic nevi: an estrogen related phenomenon. | journal = J Cutan Pathol | volume = 22 | issue = 5 | pages = 446-9 | month = Oct | year = 1995 | doi = | PMID = 8594078 }}</ref> | |||
==Microscopic== | ==Microscopic== | ||
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*Finger-like projection from the epidermis. | *Finger-like projection from the epidermis. | ||
*Pseudohorn cysts. | *Pseudohorn cysts. | ||
DDx: | |||
*[[Seborrheic keratosis]] and nevus - lesions should be distinct and collide. | |||
==Sign out== | ==Sign out== | ||
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*[[Seborrheic keratosis]]. | *[[Seborrheic keratosis]]. | ||
*[[Melanocytic lesions]]. | *[[Melanocytic lesions]]. | ||
==References== | |||
{{Reflist|1}} | |||
[[Category:Melanocytic lesions]] | [[Category:Melanocytic lesions]] | ||
[[Category:Dermatopathology]] | |||
Latest revision as of 22:56, 18 July 2013
Papillomatous nevus is an uncommon melanocytic lesion.
General
- Rare.
- Predominantly in females - thought to be estrogen-related.[1]
Microscopic
Features:
- Benign nevus - intradermal or compound.
- Finger-like projection from the epidermis.
- Pseudohorn cysts.
DDx:
- Seborrheic keratosis and nevus - lesions should be distinct and collide.
Sign out
SKIN LESION, BACK, EXCISION: - PAPILLOMATOUS COMPOUND NEVUS.
Micro
The sections show melanocytes in the dermis and epidermis. There is no pagetoid spread of melanocytes in the epidermis. Superficially, melanocytes are in nests. Melanocytes mature with depth. No melanocytic proliferative activity is seen. No significant melanocyte atypia is apparent.
Fine strands of benign basaloid epidermal cells extending from the epidermis (reticulated pattern). Pseudohorn cysts are present.