The erythemas in this chapter are generally viewed as reactions to infections , drugs , malignancies , or other miscellaneous things. They are generally more dermal , having less scale or epidermal changes than the diseases in Chapter 2 .…
The diseases in this chapter have dominant epidermal changes (clinical scaling, pathologic changes of spongiosis and parakeratosis), as opposed to rashes in 3, 4 , which primarily have dermal changes. It has been said by Levine that the diseases in…
The differential diagnostic lists that follow in this chapter serve as a starting point for evaluation of an unknown skin biopsy. Such lists have some advantages over algorithms because they provide multiple pathways for getting back on track toward the…