Virus Diseases in the Skin, Dermatology Virus diseases, Warts, exanthematous viral infections

There are two types of virus diseases that I see in my medical practice. The first are those caused by DNA viruses which integrate into the epidermal cell genome and behave as tumour viruses, producing verucas (WARTS). Secondly, the virus that replicate in the cell, exerting a cytolytic effect - this occurs in exanthematous viral infections
WARTS

Warts are found on the hands, feet, knees, and face, and are seen particularly in children. They also occur in the genital area. Human Papilloma Virus has many subtypes is the common virus.
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Verruca vulgaris and verruca plantaris are caused by HPV and have similar features. Sessile papillary lesions raised above the surface of the skin - and those on the soles are flat because of pressure under the soles of the feet.

Histologically the  epidermis is thickened and thrown into papillary folds. Hyperkeratosis alternating with parakeratosis.


 exanthematous viral infections