Home | | Clinical Dermatology | Psoriasis: Histology

Chapter: Clinical Dermatology: Psoriasis

| Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail |

Psoriasis: Histology

Parakeratosis (nuclei retained in the horny layer).

Histology (Fig. 5.2)

The main changes are the following.

1  Parakeratosis (nuclei retained in the horny layer).

2 Irregular thickening of the epidermis, but thin-ning over dermal papillae is apparent clinically when bleeding is caused by scratching and the removal of scales (Auspitz’s sign).

3 Polymorphonuclear leucocyte microabscesses (des-cribed originally by Munro).

4 Dilated and tortuous capillary loops in the dermalpapillae.

5 T-lymphocyte infiltrate in upper dermis.



 


Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail


Copyright © 2018-2020 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.