Normal skin histology
The skin is made out of three different layers:Epidermis: Stratum corneum, stratum granulosum, stratum spongiosum, stratum basalis.
Dermis: papillary and reticular dermis.
Subcutis: mainly fat.
Common words used:
~ Spongiosis: is when fluid builds up in the skin (mainly intracellular edema) leading to the increased space between cells in the epidermis making the desmosomes (intracellular bridges) visible on HE-stain.~ Civatte bodies: are apoptotic "dead" keratinocytes.
~ Acantholysis: means loss of intracellular connection between keratinocytes, so they fall from each other.