Difference between revisions of "Dermatologic neoplasms"

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Dermatologic neoplasms (view source)

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=Benign=
=Benign=
==Syringoma==
==Syringoma==
===General===
{{Main|Syringoma}}
*Benign sweat duct tumour.
*Eccrine differentiation.
*Usually close to lower [[eyelid]].<ref>{{Ref PBoD8|1177}}</ref>
 
===Microscopic===
Features:<ref>URL: [http://emedicine.medscape.com/article/1059871-diagnosis http://emedicine.medscape.com/article/1059871-diagnosis]. Accessed on: 12 May 2010.</ref>
*Proliferation of benign ducts with lined by a bilayer (as in normal sweat ducts) with abnormal architecture:
**Tadpole like appearing ducts.
 
DDx:
*Syringomatous adenomas of nipple (AKA syringoma of the nipple).<ref name=pmid22355740>{{Cite journal  | last1 = Boecker | first1 = W. | last2 = Junkers | first2 = T. | last3 = Reusch | first3 = M. | last4 = Buerger | first4 = H. | last5 = Korsching | first5 = E. | last6 = Metze | first6 = D. | last7 = Decker | first7 = T. | last8 = Loening | first8 = T. | last9 = Lange | first9 = A. | title = Origin and differentiation of breast nipple syringoma. | journal = Sci Rep | volume = 2 | issue =  | pages = 226 | month =  | year = 2012 | doi = 10.1038/srep00226 | PMID = 22355740 |URL = http://www.nature.com/srep/2012/120117/srep00226/full/srep00226.html }}</ref>
*[[Chondroid syringoma]]. (???)
 
Images:
*[http://www.flickr.com/photos/euthman/2329061316/ Syringoma (flickr.com)].
*[http://dermatology.cdlib.org/144/tumors/axillary_syringoma/2.jpg Syringoma (dermatology.cdlib.org)].<ref>{{Cite journal  | last1 = Nosrati | first1 = N. | last2 = Coleman | first2 = NM. | last3 = Hsu | first3 = S. | title = Axillary syringomas. | journal = Dermatol Online J | volume = 14 | issue = 4 | pages = 13 | month =  | year = 2008 | doi =  | PMID = 18627735 |URL = http://dermatology.cdlib.org/144/tumors/axillary_syringoma/hsu.html}}</ref>


==Chondroid syringoma==
==Chondroid syringoma==
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{{Main|Trichilemmoma}}
{{Main|Trichilemmoma}}


==Eccrine poroma==
==Poroma==
===General===
{{Main|Poroma}}
*Benign tumour arising from the distal sweat duct.
*Erythematous - gross.
 
===Microscopic===
Features:<ref>URL: [http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675(06)70190-5 http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675(06)70190-5]. Accessed on: 2 July 2010.</ref>
*Broad sheets of basaloid cells - attached to the epidermis - containing ductal structures - '''key feature'''.
*Biphasic stroma:
*#Edematous stroma.
*#Sclerotic stroma.
*Moderate nuclear pleomorphism.
*+/-Occasional mitoses.
 
Notes:
*Area above gland appears crusted.
 
DDx:
*[[Trichilemmoma]].
*[[Nodular hidradenoma]].
 
====Images====
<gallery>
Image: SkinTumors-P7150495.JPG | EP. (WC)
</gallery>
www:
*[http://www.flickr.com/photos/40981620@N04/3808316834/in/photostream/ Eccrine poroma - low mag. (flickr.com)]
*[http://www.flickr.com/photos/40981620@N04/3807502071/in/photostream Eccrine poroma - intermed. mag. (flickr.com)].


==Nodular hidradenoma==
==Nodular hidradenoma==
Michael
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