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(mv dermatofibroma to nonmalign. article) |
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==Epidermal inclusion cyst== | ==Epidermal inclusion cyst== | ||
* | *[[AKA]] ''epidermal cyst''. | ||
===General=== | |||
*Very common. | |||
===Microscopic=== | |||
*[http:// | Feature: | ||
*Lining has a granular layer<ref>URL: [http://emedicine.medscape.com/article/1058907-diagnosis http://emedicine.medscape.com/article/1058907-diagnosis]. Accessed on: 18 March 2011.</ref> - '''key feature'''. | |||
*Trapped collagen bundles at edge of lesion with surrounded by fibroblasts. | *Trapped collagen bundles at edge of lesion with surrounded by fibroblasts. | ||
*Red cells. | *Red cells. | ||
*Keratin. | |||
Image: | |||
*[http://missinglink.ucsf.edu/lm/DermatologyGlossary/img/Dermatology%20Glossary/Glossary%20Histo%20Images/epidermal_follicular_cyst.jpg Epidermal follicular cyst (ucsf.edu)]. | |||
DDx: | DDx: | ||
*Dermatofibrosarcoma - if lesion is large. | |||
*Pilar cyst - no granular layer. | |||
==See also== | ==See also== |
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