Difference between revisions of "Granuloma annulare"

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{{ Infobox diagnosis
{{ Infobox diagnosis
| Name      = {{PAGENAME}}
| Name      = {{PAGENAME}}
| Image      =  
| Image      = Granuloma_annulare_-_add_-_high_mag.jpg
| Width      =
| Width      =
| Caption    =  
| Caption    = Granuloma annulare. [[H&E stain]].
| Micro      =
| Micro      = Palisading granulomas around necrobiotic collagen and mucin
| Subtypes  =
| Subtypes  = superficial (common), deep (not common)
| LMDDx      =
| LMDDx      = [[rheumatoid nodule]], [[necrobiosis lipoidica]], [[epithelioid sarcoma]]
| Stains    =
| Stains    = [[alcian blue stain]] (pH 2.5)
| IHC        =
| IHC        =
| EM        =
| EM        =
| Molecular  =
| Molecular  =
| IF        =
| IF        =
| Gross      =
| Gross      = usu. arms and hands, papules
| Grossing  =
| Grossing  =
| Site      =
| Site      = [[skin]] - esp. antecubital fossae
| Assdx      =
| Assdx      =
| Syndromes  =
| Syndromes  =
| Signs      =
| Clinicalhx =
| Signs      =  
| Symptoms  =
| Symptoms  =
| Prevalence =
| Prevalence =
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| Rads      =
| Rads      =
| Endoscopy  =
| Endoscopy  =
| Prognosis  =
| Prognosis  = benign
| Other      =
| Other      =
| ClinDDx    =
| ClinDDx    =
}}
}}
'''Granuloma annulare''' is relatively uncommon problem in [[dermatopathology]].
'''Granuloma annulare''' is relatively uncommon problem in [[dermatopathology]].


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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>
**Associations: trauma, infections, diabetes mellitus, dyslipidemia, thyroid disease, malignancy, medications.<ref name=pmid32941717>{{cite journal |authors=Fox JD, Aramin H, Ghiam N, Freedman JB, Romanelli P |title=Secukinumab-associated localized granuloma annulare (SAGA): a case report and review of the literature |journal=Dermatol Online J |volume=26 |issue=8 |pages= |date=August 2020 |pmid=32941717 |doi= |url=}}</ref>
*A deep GA can mimic a [[rheumatoid nodule]]; may be called a ''pseudorheumatoid nodule''.<ref>{{Cite journal  | last1 = Barzilai | first1 = A. | last2 = Huszar | first2 = M. | last3 = Shpiro | first3 = D. | last4 = Nass | first4 = D. | last5 = Trau | first5 = H. | title = Pseudorheumatoid nodules in adults: a juxta-articular form of nodular granuloma annulare. | journal = Am J Dermatopathol | volume = 27 | issue = 1 | pages = 1-5 | month = Feb | year = 2005 | doi =  | PMID = 15677968 }}</ref>


==Gross==
==Gross==
*Typically extremities - usu. arms and hands.<ref name=Ref_Derm51>{{Ref Derm|51}}</ref>
*Typically extremities - usu. arms and hands.<ref name=Ref_Derm51>{{Ref Derm|51}}</ref>
===Image===
<gallery>
Image:Granuloma_annulare.jpg | Granuloma annulare. (WC)
</gallery>
==Gross==
*Antecubital fossae.<ref name=pmid32941717/>


==Microscopic==
==Microscopic==
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*[[Rheumatoid nodule]] - has fibrin in the core of the granuloma (instead of mucin), multinucleated macrophages more common.<ref name=Ref_Derm52-3>{{Ref Derm|52-3}}</ref>
*[[Rheumatoid nodule]] - has fibrin in the core of the granuloma (instead of mucin), multinucleated macrophages more common.<ref name=Ref_Derm52-3>{{Ref Derm|52-3}}</ref>
*[[Epithelioid sarcoma]] - esp. if the lesion appears to be mid-to-deep dermis.
*[[Epithelioid sarcoma]] - esp. if the lesion appears to be mid-to-deep dermis.
*Tattoo reaction (granuloma annulare-like) - case report.<ref>{{Cite journal  | last1 = Bagwan | first1 = IN. | last2 = Walker | first2 = M. | last3 = Theaker | first3 = JM. | title = Granuloma annulare-like tattoo reaction. | journal = J Cutan Pathol | volume = 34 | issue = 10 | pages = 804-5 | month = Oct | year = 2007 | doi = 10.1111/j.1600-0560.2006.00666.x | PMID = 17880589 }}</ref>


===Images===
===Images===
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Image:
Image:
*[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2861218/figure/F7/ Granuloma annulare (nih.gov)].<ref name=pmid20523767>{{Cite journal  | last1 = Yun | first1 = JH. | last2 = Lee | first2 = JY. | last3 = Kim | first3 = MK. | last4 = Seo | first4 = YJ. | last5 = Kim | first5 = MH. | last6 = Cho | first6 = KH. | last7 = Kim | first7 = MB. | last8 = Lee | first8 = WS. | last9 = Lee | first9 = KH. | title = Clinical and pathological features of generalized granuloma annulare with their correlation: a retrospective multicenter study in Korea. | journal = Ann Dermatol | volume = 21 | issue = 2 | pages = 113-9 | month = May | year = 2009 | doi = 10.5021/ad.2009.21.2.113 | PMID = 20523767 | PMC = 2861218 }}</ref>
*[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2861218/figure/F7/ Granuloma annulare (nih.gov)].<ref name=pmid20523767>{{Cite journal  | last1 = Yun | first1 = JH. | last2 = Lee | first2 = JY. | last3 = Kim | first3 = MK. | last4 = Seo | first4 = YJ. | last5 = Kim | first5 = MH. | last6 = Cho | first6 = KH. | last7 = Kim | first7 = MB. | last8 = Lee | first8 = WS. | last9 = Lee | first9 = KH. | title = Clinical and pathological features of generalized granuloma annulare with their correlation: a retrospective multicenter study in Korea. | journal = Ann Dermatol | volume = 21 | issue = 2 | pages = 113-9 | month = May | year = 2009 | doi = 10.5021/ad.2009.21.2.113 | PMID = 20523767 | PMC = 2861218 }}</ref>
==IHC==
*CD68 +ve.
*Factor XIIIa +ve<ref name=pmid16132226>{{Cite journal  | last1 = Töröcsik | first1 = D. | last2 = Bárdos | first2 = H. | last3 = Nagy | first3 = L. | last4 = Adány | first4 = R. | title = Identification of factor XIII-A as a marker of alternative macrophage activation. | journal = Cell Mol Life Sci | volume = 62 | issue = 18 | pages = 2132-9 | month = Sep | year = 2005 | doi = 10.1007/s00018-005-5242-9 | PMID = 16132226 }}</ref> -- nuclear.<ref name=pmid11372678>{{Cite journal  | last1 = Adány | first1 = R. | last2 = Bárdos | first2 = H. | last3 = Antal | first3 = M. | last4 = Módis | first4 = L. | last5 = Sárváry | first5 = A. | last6 = Szücs | first6 = S. | last7 = Balogh | first7 = I. | title = Factor XIII of blood coagulation as a nuclear crosslinking enzyme. | journal = Thromb Haemost | volume = 85 | issue = 5 | pages = 845-51 | month = May | year = 2001 | doi =  | PMID = 11372678 }}</ref>
Note:
*Not routinely used.


==Sign out==
==Sign out==
<pre>
SKIN LESION, UPPER BACK, PUNCH BIOPSY:
- SUPERFICIAL PALISADING GRANULOMAS WITH CORES OF NECROBIOTIC COLLAGEN, AND SCANT
  MUCIN; CONSISTENT WITH GRANULOMA ANNULARE.
</pre>
<pre>
<pre>
Skin lesion, left elbow, excision:
Skin lesion, left elbow, excision:
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however, plasma cells are not apparent. The differential diagnosis is rheumatoid nodule.
however, plasma cells are not apparent. The differential diagnosis is rheumatoid nodule.
</pre>
</pre>
===Micro===
The sections show hair bearing skin with superficial palisading granuloma with cores of necrobiotic collagen and mucin. Plasma cells are not apparent in association with the lesion.
The overlying epidermis matures normally to the surface and has no basal atypia.


==See also==
==See also==
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[[Category:Diagnosis]]
[[Category:Diagnosis]]
[[Category:Dermatopathology]]
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