Difference between revisions of "Eccrine hidrocystoma"

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{{ Infobox diagnosis
| Name      = {{PAGENAME}}
| Image      =
| Width      =
| Caption    =
| Synonyms  =
| Micro      = cyst lined by a bland bilayer, lack apocrine snouts
| Subtypes  =
| LMDDx      =
| Stains    =
| IHC        =
| EM        =
| Molecular  =
| IF        =
| Gross      =
| Grossing  =
| Staging    =
| Site      = [[eyelid]]
| Assdx      =
| Syndromes  =
| Clinicalhx =
| Signs      =
| Symptoms  =
| Prevalence =
| Bloodwork  =
| Rads      =
| Endoscopy  =
| Prognosis  = benign
| Other      =
| ClinDDx    = cystic [[basal cell carcinoma]]
| Tx        = excision
}}
'''Eccrine hidrocystoma''' is a benign lesion of the [[eye]]lid.
'''Eccrine hidrocystoma''' is a benign lesion of the [[eye]]lid.


It is occasionally spelled ''eccrine hydrocystoma''.<ref name=pmid10065300/>
It is occasionally spelled ''eccrine hydrocystoma''.
==General==
==General==
*Benign.
*Benign.
*Eyelid lesion.
*Eyelid lesion.


Clinical DDx:<ref name=pmid10065300/>
Clinical DDx:
*Cystic [[BCC]].
*Cystic [[BCC]].


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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)].
*[https://www.webpathology.com/image.asp?n=92&Case=706 Eccrine hidrocystoma (webpathology.com)].
*[http://www.dermnet.org.nz/pathology/apocrine-hidrocystoma-path.html Apocrine hidrocystoma (dermnet.org)].
*[http://www.flickr.com/photos/42574434@N03/9519309216 Apocrine hidrocystoma (flickr.com)].


==Sign out==
==Sign out==
<pre>
Lesion [Cyst], Left Lower Eyelid, Excision:
- Benign cyst in keeping with eccrine hidrocystoma.
</pre>
===Micro===
The sections show hair bearing skin with a cyst lined by a bland, flat, bilayered epithelium.  The lining cells have moderate pale cytoplasm and small round nuclei. 
The lesion is excised in the plane of section.
===All uppercase===
<pre>
<pre>
SKIN LESION, ADJACENT TO RIGHT EYELID, EXCISION:
SKIN LESION, ADJACENT TO RIGHT EYELID, EXCISION:
Line 45: Line 74:
</pre>
</pre>


===Micro===
====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 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.   



Latest revision as of 13:44, 1 May 2023

Eccrine hidrocystoma
Diagnosis in short

LM cyst lined by a bland bilayer, lack apocrine snouts
Site eyelid

Prognosis benign
Clin. DDx cystic basal cell carcinoma
Treatment excision

Eccrine hidrocystoma is a benign lesion of the eyelid.

It is occasionally spelled eccrine hydrocystoma.

General

  • Benign.
  • Eyelid lesion.

Clinical DDx:

Microsopic

Features:[1][2]

  • 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

www

Sign out

Lesion [Cyst], Left Lower Eyelid, Excision:
	- Benign cyst in keeping with eccrine hidrocystoma.

Micro

The sections show hair bearing skin with a cyst lined by a bland, flat, bilayered epithelium. The lining cells have moderate pale cytoplasm and small round nuclei.

The lesion is excised in the plane of section.

All uppercase

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. 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.
  2. Busam, Klaus J. (2009). Dermatopathology: A Volume in the Foundations in Diagnostic Pathology Series (1st ed.). Saunders. pp. 314. ISBN 978-0443066542.