Venous lake: Difference between revisions
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{{ Infobox diagnosis | |||
| Name = {{PAGENAME}} | |||
| Image = Venous_lake_--_very_low_mag.jpg | |||
| Width = | |||
| Caption = Venous lake. [[H&E stain]]. (WC) | |||
| Synonyms = | |||
| Micro = | |||
| Subtypes = | |||
| LMDDx = [[angiokeratoma]], [[cherry hemangioma]] | |||
| Stains = | |||
| IHC = | |||
| EM = | |||
| Molecular = | |||
| IF = | |||
| Gross = classical location: lip | |||
| Grossing = | |||
| Staging = | |||
| Site = | |||
| Assdx = | |||
| Syndromes = | |||
| Clinicalhx = | |||
| Signs = dark blue/purple spot, blanches with pressure | |||
| Symptoms = | |||
| Prevalence = common | |||
| Bloodwork = | |||
| Rads = | |||
| Endoscopy = | |||
| Prognosis = benign | |||
| Other = | |||
| ClinDDx = | |||
| Tx = | |||
}} | |||
'''Venous lake''' is a benign [[skin]] lesion. | |||
==General== | |||
*Dilated vein. | |||
Clinical: | |||
*Blanches with pressure.<ref>URL: [http://dermatlas.med.jhmi.edu/derm/IndexDisplay.cfm?ImageID=-969536424 http://dermatlas.med.jhmi.edu/derm/IndexDisplay.cfm?ImageID=-969536424]. Accessed on: 13 August 2012.</ref> | |||
===Gross=== | |||
*Purple/blue spot. | |||
==Microscopic== | |||
Features:<ref>Weedon's Skin Pathology. 3rd Ed. P.895.</ref> | |||
*Lined by endothelium. | |||
*Blood in lumen. | |||
*+/-Fibrin in lumen. | |||
*+/-[[Solar elastosis]] - very common.<ref name=Ref_Derm551>{{Ref Derm|551}}</ref> | |||
DDx: | |||
*[[Angiokeratoma]]. | |||
**Ectatic superficial dermal vessels. | |||
**Irregular [[acanthosis]]. | |||
**Longer rete ridges. | |||
*[[Cherry hemangioma]].<ref name=Ref_Derm551>{{Ref Derm|551}}</ref> | |||
===Images=== | |||
<gallery> | |||
Image: Venous lake -- very low mag.jpg | VL - very low mag. (WC) | |||
Image: Venous lake -- low mag.jpg | VL - low mag. (WC) | |||
</gallery> | |||
==Sign out== | |||
<pre> | |||
Left Lower Lip Lesion, Excision: | |||
- Benign subcutaneous tissue with venous lake. | |||
- NEGATIVE for malignancy. | |||
</pre> | |||
===Block letters=== | |||
<pre> | |||
SKIN LESION, RIGHT CHEEK, BIOPSY: | |||
- VENOUS LAKE. | |||
- SOLAR ELASTOSIS. | |||
- NEGATIVE FOR NEVUS. | |||
</pre> | |||
===Micro=== | |||
The sections show subcutaneous tissue with dilated vascular spaces. No significant atypia is seen. No overlying skin is present. | |||
==See also== | |||
*[[Dermal cysts]]. | |||
==References== | |||
{{Reflist|1}} | |||
[[Category:Diagnosis]] | |||
[[Category:Dermatopathology]] | |||