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Flat: Flat warts, known as verruca plana, appear as mildly elevated, subtle skin-colored lesions, says Greenfield. Like common warts, these can appear on the face, hands and legs but are not as ...
Common wart (verruca vulgaris), [8] a raised wart with a roughened surface, most common on hands, but can grow anywhere on the body. Sometimes known as a Palmer wart or Junior wart. Flat wart (verruca plana), a small, smooth flattened wart, flesh-coloured, which can occur in large numbers; most common on the face, neck, hands, wrists, and knees.
A plantar wart is a small lesion that appears on the surface of the skin and typically resembles a cauliflower, with tiny black petechiae (tiny hemorrhages under the skin) in the center. Pinpoint bleeding may occur when these are scratched. Plantar warts occur on the soles of feet and toes.
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
A cancerous lesion which looked like a freckle grew to the size of a 10 pence piece in a matter of months.
[1] [2] Most often, these lesions affect the hands, legs, or face, and a linear arrangement is not uncommon. [2] At histopathology, flat warts have cells with prominent perinuclear vacuolization around pyknotic, basophilic, centrally located nuclei that may be located in the granular layer. [3] These are referred to as "owl's eye cells." [3]
A seborrheic keratosis is a non-cancerous skin tumour that originates from cells, namely keratinocytes, in the outer layer of the skin called the epidermis. Like liver spots, seborrheic keratoses are seen more often as people age. [4] The tumours (also called lesions) appear in various colours, from light tan to black.
Inflammatory Linear Verrucous Epidermal Nevus is a rare disease of the skin that presents as multiple, discrete, red papules that tend to coalesce into linear plaques that follow the Lines of Blaschko. The plaques can be slightly warty (psoriaform) or scaly (eczema-like). ILVEN is caused by somatic mutations that result in genetic mosaicism.