Rheumatoid nodule: Difference between revisions
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{{ Infobox diagnosis | |||
| Name = {{PAGENAME}} | |||
| Image = Rheumatoid_nodule_-_intermed_mag_2.jpg | |||
| Width = | |||
| Caption = Rheumatoid nodule. [[H&E stain]]. | |||
| Synonyms = | |||
| Micro = necrotic collagen bundles with fibrin surrounded by [alisading [[granuloma]], +/-[[eosinophil]]s | |||
| Subtypes = | |||
| LMDDx = [[granuloma annulare]], [[necrobiosis lipoidica]] | |||
| Stains = [[Alcian blue stain|Alcian blue]] (pH 2.5) -ve | |||
| IHC = | |||
| EM = | |||
| Molecular = | |||
| IF = | |||
| Gross = extensor aspect of the extremities, e.g. dorsal aspect of elbow | |||
| Grossing = | |||
| Site = [[skin]] (see ''[[rheumatoid lung nodule]]'' for the lung lesion) | |||
| Assdx = | |||
| Syndromes = | |||
| Clinicalhx = | |||
| Signs = skin nodule, close to joint - typically elbow | |||
| Symptoms = | |||
| Prevalence = uncommon | |||
| Bloodwork = RF +ve | |||
| Rads = | |||
| Endoscopy = | |||
| Prognosis = benign | |||
| Other = | |||
| ClinDDx = | |||
| Tx = | |||
}} | |||
{{ Infobox external links | {{ Infobox external links | ||
| Name = Rheumatoid nodule | | Name = Rheumatoid nodule | ||
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==Sign out== | ==Sign out== | ||
<pre> | |||
Submitted as "Rheumatoid Nodule Left Thumb", Excision: | |||
- Consistent with rheumatoid nodule (palisading granulomas with | |||
cores of necrobiotic collagen). | |||
- NEGATIVE for microorganisms with special stains (ZN, Grocott). | |||
</pre> | |||
<pre> | <pre> | ||
Lesion (subcutaneous), right index finger, excision: | Lesion (subcutaneous), right index finger, excision: | ||