Langerhan's cells are:

Answer is B (Antigen presenting cells) : Langerhan's cells are characteristic Antigen presenting cells Langerhan's cells are clear dendritic Q cells situated among the cells of stratum spinosum (slun). Q They are believed to be antigen processing cells. Q They are S100 positive Q on immunohistochemical studies. On electron microscopy: they lack melanosomesQ contain characteristic organelle, the Birbeck's granule.Q