Difference between revisions of "Eccrine hidrocystoma"

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**Outer lining cells - spindled.
**Outer lining cells - spindled.
***May be difficult to see.
***May be difficult to see.
Note:
*According to the CMAJ, it has the histology of an [[epidermal inclusion cyst]].<ref name=pmid10065300>{{Cite journal  | last1 = Adams | first1 = SP. | title = Dermacase. Eccrine hydrocystoma. | journal = Can Fam Physician | volume = 45 | issue =  | pages = 297, 306 | month = Feb | year = 1999 | doi =  | PMID = 10065300 |PMC = 2328272 }}</ref>


DDx:
DDx:
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===Image===
===Image===
<gallery>
Image: Eccrine hidrocystoma -- extremely low mag.jpg | EH - extremely low mag. (WC)
Image: Eccrine hidrocystoma -- very low mag.jpg | EH - very low mag. (WC)
Image: Eccrine hidrocystoma -- low mag.jpg | EH - low mag. (WC)
Image: Eccrine hidrocystoma -- intermed mag.jpg | EH - intermed. mag. (WC)
Image: Eccrine hidrocystoma -- high mag.jpg | EH - high mag. (WC)
</gallery>
====www====
====www====
*[http://www.nature.com/eye/journal/v19/n1/fig_tab/6701404f1.html Eccrine hidrocystoma (nature.com)].
*[http://www.nature.com/eye/journal/v19/n1/fig_tab/6701404f1.html Eccrine hidrocystoma (nature.com)].

Revision as of 15:49, 8 June 2018

Eccrine hidrocystoma is a benign lesion of the eyelid.

It is occasionally spelled eccrine hydrocystoma.[1]

General

  • Benign.
  • Eyelid lesion.

Clinical DDx:[1]

Microsopic

Features:[2][3]

  • Cyst lined by a bland bilayer.
    • Inner lining cells have:
      • Small, round nuclei - usu. basal.
      • Moderate pale/greyish cytoplasm.
      • No apocrine snouts - flat surface.
    • Outer lining cells - spindled.
      • May be difficult to see.

DDx:

  • Apocrine hidrocystoma - have apocrine snouts; surface is not flat.
  • Cystadenoma - has epithelial proliferation.

Image

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SKIN LESION, ADJACENT TO RIGHT EYELID, EXCISION:
- ECCRINE HIDROCYSTOMA.

Micro

The sections show hair bearing skin with a cyst lined by a bland bilayered epithelium. The predominant lining cell has moderate pale grey cytoplasm and a small round nucleus.

The lesion is excised in the plane of section.

See also

References

  1. ↑ 1.0 1.1 Cite error: Invalid <ref> tag; no text was provided for refs named pmid10065300
  2. ↑ Singh, AD.; McCloskey, L.; Parsons, MA.; Slater, DN. (Jan 2005). "Eccrine hidrocystoma of the eyelid.". Eye (Lond) 19 (1): 77-9. doi:10.1038/sj.eye.6701404. PMID 15205675.
  3. ↑ Busam, Klaus J. (2009). Dermatopathology: A Volume in the Foundations in Diagnostic Pathology Series (1st ed.). Saunders. pp. 314. ISBN 978-0443066542.
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