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Difference between revisions of "Non-malignant skin disease"
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m
→Granuloma annulare
m (→General: w) |
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*Benign and self-limited condition. | *Benign and self-limited condition. | ||
*Etiology unknown - may be assoc. with trauma.<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> | *Etiology unknown - may be assoc. with trauma.<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> | ||
===Gross=== | |||
*Typically extremities - usu. arms and hands.<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> | |||
===Microscopic=== | ===Microscopic=== | ||
| Line 473: | Line 476: | ||
DDx: | DDx: | ||
*[[Necrobiosis lipoidica]] - little mucin, no normal dermis between foci,<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> plasma cells - common | *[[Necrobiosis lipoidica]] - little mucin, no normal dermis between foci,<ref name=Ref_Derm51>{{Ref Derm|51}}</ref> plasma cells - common,<ref name=dermnetnz_nl>URL: [http://dermnetnz.org/pathology/necrobiosis-lipoidica-path.html http://dermnetnz.org/pathology/necrobiosis-lipoidica-path.html]. Accessed on: 24 January 2012.</ref> may involve the fat - tend to be deeper. | ||
*[[Rheumatoid nodule]] - has fibrin in the core of the granuloma (instead of mucin).<ref name=Ref_Derm52>{{Ref Derm|52}}</ref> | *[[Rheumatoid nodule]] - has fibrin in the core of the granuloma (instead of mucin).<ref name=Ref_Derm52>{{Ref Derm|52}}</ref> | ||
*[[Epithelioid sarcoma]] - esp. if the lesion appears to be mid-to-deep dermis. | |||
Images: | Images: | ||