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Difference between revisions of "Dermal cysts"
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→Epidermal inclusion cyst: more
(→Venous lake: wikify) |
(→Epidermal inclusion cyst: more) |
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===Microscopic=== | ===Microscopic=== | ||
Features: | |||
*Cyst lining has a granular layer - '''key feature'''.<ref>URL: [http://emedicine.medscape.com/article/1058907-diagnosis http://emedicine.medscape.com/article/1058907-diagnosis]. Accessed on: 18 March 2011.</ref> | *Cyst lining has a granular layer - '''key feature'''.<ref>URL: [http://emedicine.medscape.com/article/1058907-diagnosis http://emedicine.medscape.com/article/1058907-diagnosis]. Accessed on: 18 March 2011.</ref> | ||
*Trapped collagen bundles at edge of lesion with surrounded by fibroblasts. | *Trapped collagen bundles at edge of lesion with surrounded by fibroblasts. | ||
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DDx: | DDx: | ||
*Dermatofibrosarcoma - if lesion is large. | *[[Dermatofibrosarcoma]] - if lesion is large. | ||
*Pilar cyst - no granular layer. | *[[Pilar cyst]] - no granular layer. | ||
==Pilar cyst== | |||
===General=== | |||
*Very common. | |||
===Microscopic=== | |||
Features: | |||
*Keratin. | |||
*Cyst lining has no granular layer - '''key feature'''. | |||
*Trapped collagen bundles at edge of lesion with surrounded by fibroblasts. | |||
DDx: | |||
*[[Epidermal cyst]] - has a granular layer. | |||
==See also== | ==See also== | ||