Tuesday, January 15, 2019

Psoriasiform reaction pattern

Psoriasiform reaction pattern

Regular elongation of rete pegs ('elephant feet')

Parakeratosis, thinning of suprapapillary epidermis, dilated vessels in papillary dermis

Dilated vessels in papillary dermis


Wednesday, January 9, 2019

Column chromatography

 A jar of snacks (namkeens) demonstrate the principles of column chromatography to a fairly accurate extent. In a column consisting of diffe...