Case Number : Case 1691 - 21 November - Dr Richard Carr Posted By: Guest

Nothing starts the week better than one of Dr Richard A Carr's Spot Diagnosis Cases, enjoy.

Geoff Cross - DermpathPRO Projects

Erythema nodosum

Erythema nodosum

There is a septal paniculitis with foci of lymphocytes, histiocytes and a few eosinophils, also multinucleated giant cells. Nice example for Erythema Nodosum.

Septal panniculitis : erythema nodosum 

Anybody know what is this on the last picture?

These are really beautiful images that we have here, particularly the last one showing a frank example of Miescher's radial granuloma. Dr. Requena remarks this finding as quite specific for EN, here a nice article

I was asking this finding exactly to the newbies ;)

53 minutes ago, IgorSC said:

I was asking this finding exactly to the newbies ;)

Sorry Igor I did not see your comment before posting; my idea was to remark it but in a different way. Nice case

 Beautiful :-)

Yes, really beautiful. And there is another nice finding that might make thinking of something other but instead is an useful clue to EN...:-))

Yes this is a nice example of septal panniculitis in keeping with erythema nodusum (with Meisher's radial granulomas). Looking forward to learning more from Vincenzo.  Well done newbies!

I have nothing to teach to anybody...only a bit signalling about a finding in last right fig: a vasculitis that could make do,  to an unexpert like me, an erroneous diagnosis of nodular vasculitis...But the newbies are by far more experts than me. Huge achievement of this great web site!