<prompt> Sawtooth rete ridges are seen in:ErythrodermaPsoriasisDariers diseaseLichen planus  <response>: Ans. d. Lichen planusHPE of Lichen PlanusHyperkeratosisHypergranulosisAcanthosisBasal cell degeneration producing Civatte bodiesMax-Joseph SpaceBand like infiltration of Lymphocytes at dermo- epidermal junction.Saw toothing of Rete - Ridges 