Exocytosis is infiltration of the epidermis by inflammatory or circulating blood cells.^[1]

References

^ Kumar, Vinay; Fausto, Nelso; Abbas, Abul (2004) Robbins & Cotran Pathologic Basis of Disease (7th ed.). Saunders. Page 1230. ISBN 0-7216-0187-1.

Macroscopic

Primary lesions	flat Macule Patch elevated Papule Nodule Plaque fluid Vesicle Bulla Pustule Ulcer Erosion Telangiectasia Special initial lesions : Burrow Tunnel Comedo Scutulum Target lesion Herald patch Wheal
Secondary lesions	Scale Crust Lichenification Excoriation Induration Atrophy

Microscopic

See also