Case 199. Demodex folliculorum colonization (27 y-o M)

　 　 　 　
　 Incidental biopsy findings of mite colonization in the hair follicle adjacent to the nevus of the facial skin 　
　 　 　 　

　

 　 IgD is speficically deposited on the surface of the mite (immunostaining). IgG, IgA, IgM and IgE are negative. Deposition of α-1 antitrypsin and α-1 antichymotrypsin are also observed.