Difference between revisions of "Panniculitis"

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Panniculitis (view source)

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*[[ulcerative colitis|'''U'''lcerative colitis]] & [[Crohn's disease]] ~ 2% of cases.
*[[ulcerative colitis|'''U'''lcerative colitis]] & [[Crohn's disease]] ~ 2% of cases.
*'''M'''alignancy ([[leukemia]], [[Hodgkin's lymphoma]]) ~ 1% of cases
*'''M'''alignancy ([[leukemia]], [[Hodgkin's lymphoma]]) ~ 1% of cases
Clinical:<ref name=pmid12165214/>
*Painful.
*Tender.
*Sudden onset.
*Heal without scarring.
===Gross===
*Red/brown nodules.
**Classically shins<ref>{{Cite journal  | last1 = Babamahmoodi | first1 = F. | last2 = Babamahmoodi | first2 = A. | last3 = Barani | first3 = H. | last4 = Delavarian | first4 = L. | title = Simultaneous occurrence of erythema nodosum in monozygotic twin sisters. | journal = Case Rep Med | volume = 2012 | issue =  | pages = 109427 | month =  | year = 2012 | doi = 10.1155/2012/109427 | PMID = 22719770 }}</ref> - also knees and ankles.<ref name=pmid12165214>{{Cite journal  | last1 = Requena | first1 = L. | last2 = Requena | first2 = C. | title = Erythema nodosum. | journal = Dermatol Online J | volume = 8 | issue = 1 | pages = 4 | month = Jun | year = 2002 | doi =  | PMID = 12165214 }}</ref>
**Often bilateral.<ref name=pmid12165214/>
<gallery>
Image: ENlegs.JPG | EN. (WC)
</gallery>


===Microscopic===
===Microscopic===
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#No [[vasculitis]].
#No [[vasculitis]].
#+/-Granulomas - within the septa.<ref name=uscf_en>URL: [http://missinglink.ucsf.edu/lm/DermatologyGlossary/erythema_nodosum.html http://missinglink.ucsf.edu/lm/DermatologyGlossary/erythema_nodosum.html]. Accessed on: 11 September 2011.</ref>
#+/-Granulomas - within the septa.<ref name=uscf_en>URL: [http://missinglink.ucsf.edu/lm/DermatologyGlossary/erythema_nodosum.html http://missinglink.ucsf.edu/lm/DermatologyGlossary/erythema_nodosum.html]. Accessed on: 11 September 2011.</ref>
#No ulceration.<ref name=pmid12165214/>


DDx:
DDx:
*[[Scleroderma panniculitis]].
*[[Scleroderma panniculitis]].
*[[Necrotizing fasciitis]].


Images:
====Images====
*[http://missinglink.ucsf.edu/lm/DermatologyGlossary/img/Dermatology%20Glossary/Glossary%20Histo%20Images/Erythema_Nodosum_low_power.jpg EN - low mag. (ucsf.edu)].<ref name=uscf_en>URL: [http://missinglink.ucsf.edu/lm/DermatologyGlossary/erythema_nodosum.html http://missinglink.ucsf.edu/lm/DermatologyGlossary/erythema_nodosum.html]. Accessed on: 11 September 2011.</ref>
*[http://missinglink.ucsf.edu/lm/DermatologyGlossary/img/Dermatology%20Glossary/Glossary%20Histo%20Images/Erythema_Nodosum_low_power.jpg EN - low mag. (ucsf.edu)].<ref name=uscf_en>URL: [http://missinglink.ucsf.edu/lm/DermatologyGlossary/erythema_nodosum.html http://missinglink.ucsf.edu/lm/DermatologyGlossary/erythema_nodosum.html]. Accessed on: 11 September 2011.</ref>
*[http://missinglink.ucsf.edu/lm/DermatologyGlossary/img/Dermatology%20Glossary/Glossary%20Histo%20Images/Erythema_Nodosum_high_power.jpg EN - high mag. (ucsf.edu)].
*[http://missinglink.ucsf.edu/lm/DermatologyGlossary/img/Dermatology%20Glossary/Glossary%20Histo%20Images/Erythema_Nodosum_high_power.jpg EN - high mag. (ucsf.edu)].
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==Morphea profunda==
==Morphea profunda==
*[[AKA]] ''scleroderma panniculitis''.
*[[AKA]] ''scleroderma panniculitis''.
 
{{Main|Morphea profunda}}
===General===
{{Main|Scleroderma}}
*Think about the name... sclerotic (sclero-) dermis (-derma).
 
===Microscopic===
Features:<ref name=pmid18948765>{{Cite journal  | last1 = Brinster | first1 = NK. | title = Dermatopathology for the surgical pathologist: a pattern-based approach to the diagnosis of inflammatory skin disorders (part II). | journal = Adv Anat Pathol | volume = 15 | issue = 6 | pages = 350-69 | month = Nov | year = 2008 | doi = 10.1097/PAP.0b013e31818b1ac6 | PMID = 18948765 }}</ref>
*Septal fibrosis/expansion - '''key feature'''.
**Classically ~2-3x an adipocytes thick.
*+/-Deep dermal perivascular lymphocytes and plasma cells.
 
DDx:
*[[Erythema nodosum]].
*[[Lichen sclerosus]] - fibrosis only superficial.
 
Images:
*www:
**[http://www.dermaamin.com/site/images/histo-pic/s/superficial-morphea/superficial-morphea1.jpg Morphea - low mag. (dermaamin.com)].<ref>URL: [http://www.dermaamin.com/site/histopathology-of-the-skin/71-s/2154-superficial-morphea-.html http://www.dermaamin.com/site/histopathology-of-the-skin/71-s/2154-superficial-morphea-.html]. Accessed on: 5 October 2011.</ref>
**[http://www.dermaamin.com/site/images/histo-pic/s/superficial-morphea/superficial-morphea2.jpg Morphea - high mag. (dermaamin.com)].


==Erythema induratum==
==Erythema induratum==
Michael
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