Lichenisation occurs in which layer of skin­-: (A) Stratum malpighi, (B) Stratum corneum, (C) Stratum hucidum, (D) Stratum granulosum
Answer is A. The Malpighian layer of the skin is generally defined as both the stratum basale and stratum spinosum as a unit, although it is occasionally defined as the stratum basale specifically,or the stratum spinosum specifically.
It is named after Marcello Malpighi