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Difference between revisions of "Rheumatoid arthritis"
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→Rheumatoid nodule
| Line 24: | Line 24: | ||
===Microscopic=== | ===Microscopic=== | ||
Features:<ref name=Ref_DCHH299>{{Ref DCHH|299}}</ref> | Features:<ref name=Ref_DCHH299>{{Ref DCHH|299}}</ref><ref name=Ref_Derm52>{{Ref Derm|52}}</ref> | ||
*Necrotic collagen bundles with | *Necrotic collagen bundles with fibrin surrounded by: | ||
**Palisading [[granuloma]]. | **Palisading [[granuloma]]. | ||
*+/-Eosinophils. | *+/-Eosinophils. | ||
Notes: | Notes: | ||
*Histomorphologically | *Histomorphologically very similar to ''[[Granuloma annulare]]''. | ||
DDx: | DDx: | ||
*[[Granuloma annulare]]. | *[[Granuloma annulare]] - has mucin in the core of the granuloma.<ref name=Ref_Derm52>{{Ref Derm|52}}</ref> | ||
*[[Necrobiosis lipoidica]]. | *[[Necrobiosis lipoidica]]. | ||