Thanks to Grant Smith for presenting a case of a 62 yo M h/o questionable SLE presenting with subcutaneous nodules on the shins thought to be Erythema Nodosum with unclear etiology!
- Turns out this isn’t LT’s first deep dive into EN! He was already ahead of the curve in 1984.
- As promised, here’s the document to get a FREE version of Visual Dx! (It’s great for dermatology and more!)
- Note: you have to be physically present at the VA when doing this, or on the VA VPN.
- Getting VisualDx
- We talked a bunch about the Common etiologies of EN vs. the More Uncommon. Here’s a list of a bunch of those dx’s (Missing from the list below – Pregnancy!)
- When you find a diagnosis of EN, you should send an initial work up (per UpToDate)
- CBC (to assess for infxn & malig)
- ESR +/- CRP (elevation sign of systemic dz & widespread inflam)
- Antistreptolysin O (ASO) titers (repeated 2-4 wks later)
- CXR (assess for sarcoid, TB, pulm infxn, lymphoma)
- PPD or Quantiferon