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Difference between revisions of "Non-malignant skin disease"
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Non-malignant skin disease (view source)
Revision as of 03:39, 20 September 2011
, 03:39, 20 September 2011→Granuloma annulare
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*Necrobiosis lipoidica - little mucin, no normal dermis between foci.<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> | *[[Necrobiosis lipoidica]] - little mucin, no normal dermis between foci.<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> | ||
*[[Rheumatoid nodule]]. | *[[Rheumatoid nodule]]. | ||
Images: | Images: | ||
*[http://www.dermaamin.com/site/histopathology-of-the-skin/61-i/1813-interstitial-granuloma-annulare-.html Granuloma annulare (dermaamin.com)]. | *[http://www.dermaamin.com/site/histopathology-of-the-skin/61-i/1813-interstitial-granuloma-annulare-.html Granuloma annulare (dermaamin.com)]. | ||
==Necrobiosis lipoidica== | |||
===General=== | |||
Associated with: | |||
*[[Diabetes mellitus]] - known as ''necrobiosis lipoidica diabeticorum''. | |||
*[[Rheumatoid arthritis]]. | |||
===Microscopic=== | |||
Features:<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> | |||
*Dermal palisading [[granuloma]] around: | |||
**Necrotic collagen - '''key feature'''. | |||
***Nuclei "missing" - have undergone karyolysis. | |||
*Little mucin, no normal dermis between foci. | |||
DDx: | |||
*[[Granuloma annulare]] - more mucin, normal dermis between foci.<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> | |||
*[[Rheumatoid nodule]]. | |||
==Keloid== | ==Keloid== | ||