Acute, Subacute, and Chronic Cutaneous Lupus Erythematosus (ACLE, SCLE, CCLE). CCLE is aka Discoid.
Each subtype "overlaps" with SLE in a different way.
Eg: ACLE overlaps completely with SLE, so they all have SLE! 👇
Main items on the ddx for ACLE are things like rosacea, seborrheic dermatitis, and other facial rashes. To differentiate, ACLE spares which of the following areas?
-ACLE is the malar rash. This spares the NLF.
-SCLE is scaly and photo distributed, can be drug induced.
-CCLE is on head and neck, look at conchal bowls and for alopecia.
-Each subtype has a different risk of having SLE.
1 - Lupus Pernio (pic 1 - actually sarcoid)
2 - Lupus Vulgaris (pic 2 - actually TB)
As opposed to (pic3) "pernio," which can be associated w/lupus, despite not having the name.