<prompt> Pseudo Nikolsky sign is seen inPemphigusLupus vulgarisToxic epidermal necrolysisLeischmaniasis  <response>: Nikolsky sign is present in disorders with acantholysis where lateral pressure on normal skin around blister results in seperation of layers of epidermis and extension of blister. Ex: Pemphigus.Pseudo Nikolsky sign is seen in Toxic Epidermic Necrolysis TEN where epidermal seperation is due to death of epidermal cells. 