Seborrheic Keratosis

A seborrheic keratosis (also known as "seborrheic verruca," and "senile wart") is a noncancerous benign skin growth that originates in keratinocytes. Like liver spots, seborrheic keratoses are seen more often as people age. In fact, they are sometimes humorously referred to as the "barnacles of old age".

The lesions appear in various colors, from light tan to black. They are round or oval, feel flat or slightly elevated (like the scab from a healing wound), and range in size from very small to more than 2.5 centimetres (1.0 in) across. They can resemble warts, though they have no viral origins. They can also resemble melanoma skin cancer, though they are unrelated to melanoma as well. Because only the top layers of the epidermis are involved, seborrheic keratoses are often described as having a "pasted on" appearance. Some dermatologists refer to seborrheic keratoses as "seborrheic warts"; these lesions, however, are usually not associated with HPV, and therefore such nomenclature is discouraged.

Read more about Seborrheic Keratosis:  Epidemiology, Classification, Diagnosis, Treatment, Cause, Etymology

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List Of ICD-9 Codes 680–709: Diseases Of The Skin And Subcutaneous Tissue
... Atopic dermatitis Besnier's prurigo Seborrheic dermatitis Pityriasis simplex capillitii Cradle cap Contact dermatitis (allergic, irritant) plants Urushiol-induced contact dermatitis ... et colli Hair casts Hair follicle nevus Intermittent hair–follicle dystrophy Keratosis pilaris atropicans Kinking hair Koenen's tumor Lichen ...
Seborrheic Keratosis - Etymology
... The term "seborrheic keratosis" combines the adjective form of seborrhea, keratinocyte (referring to the part of the epidermis that produces keratin), and the suffix -osis, meaning abnormal ...
Sclerodactyly
... and telangiectasia.) Cutaneous keratosis, ulcer, atrophy, and necrobiosis (L82–L94, 700–701.5) Epidermal thickening keratoderma Keratoderma climactericum Paraneoplastic ...