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