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Difference between revisions of "Nodular hidradenoma"
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*[[Eccrine poroma]]. | *[[Eccrine poroma]]. | ||
*[[Squamous cell carcinoma]].<ref>{{cite journal |authors=Nakazato S, Yanagi T, Inamura Y, Kitamura S, Hata H, Shimizu H |title=A case of nodular hidradenoma of the auricle mimicking squamous cell carcinoma |journal=Eur J Dermatol |volume=26 |issue=4 |pages=409–10 |date=August 2016 |pmid=27350422 |doi=10.1684/ejd.2016.2810 |url=}}</ref> | |||
*[[Glomus tumour]]. | |||
===Images=== | ===Images=== | ||
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*S100 -ve. | *S100 -ve. | ||
*Desmin -ve. | *Desmin -ve. | ||
==Sign out== | |||
<pre> | |||
Left Thumb Lesion, Excision: | |||
- Hidradenoma. | |||
</pre> | |||
===Micro=== | |||
The sections show an epithelial tumour with squamoid features, mild pleomorphism and whirling, that underlies a benign epidermis. Degenerative changes are present. Rare mitotic figures are seen. | |||
PAS and PASD staining shows PAS-positive diastase-resistant droplets. The tumour is CAM5.2 POSITIVE, S-100 NEGATIVE and SMA NEGATIVE. | |||
==See also== | ==See also== | ||