Severe Skin Forms of Psoriasis in Black Africans: Epidemiological, Clinical, and Histological Aspects Related to 56 Cases

Table 1

Histological epidermal changes in 11 severe psoriasis cases.

Epidermal changes	Number (𝑛)	Percentage (𝑛/11)
Hyperkeratosis	11	100.0
Parakeratosis	8	72.7
Parakeratosis and orthokeratosis	3	27.3
Microabscesses	8	72.7
Agranulosis	11	100.0
Thinning of the dermal papilla roof	10	90.9
Interpapillary bud changes
Acanthosis	10	90.9
Elongation	8	72.7
Club aspect	7	63.6
Exocytosis	8	72.7
Polynuclear and mononuclear neutrophils	7	63.6
Mononuclear	1	9.1
Spongiosis	4	36.4
Minimal	3	27.3
Moderate	1	9.1