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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.
Many seborrheic keratoses on the back of a person with Leser–Trélat sign due to colon cancer. The Leser–Trélat sign is the explosive onset of multiple seborrheic keratoses [1] (many pigmented skin lesions), [2] [3] often with an inflammatory base. This can be a sign of internal malignancy as part of a paraneoplastic syndrome. In addition ...
Seborrheic dermatitis What it looks like : Seborrheic dermatitis is a form of eczema that is characterized by scaly, oily or greasy patches of skin, usually on the scalp.
Stucco keratosis (digitate seborrheic keratosis, hyperkeratotic seborrheic keratosis, keratosis alba, serrated seborrheic keratosis, verrucous seborrheic keratosis) Superficial basal cell carcinoma (superficial multicentric basal cell carcinoma) Syringadenoma papilliferum (syringocystadenoma papilliferum)
However, noncontagious warts can become permanent in older adults due to seborrheic keratosis — skin cells that have rapidly multiplied and turned into differently colored and textured lumps ...
Photos of actinic keratosis. Photo of Actinic Keratosis (Steven Love / Alamy Stock Photo) Actinic keratosis symptoms and signs. With actinic keratosis, you may have bumps that look and feel like ...
Keratosis (from kerat-+ -osis) [1] is a growth of keratin on the skin or on mucous membranes stemming from keratinocytes, the prominent cell type in the epidermis. More specifically, it can refer to: actinic keratosis (also known as solar keratosis), a premalignant condition; chronic scar keratosis; hydrocarbon keratosis
Seborrhoeic dermatitis (also spelt seborrheic dermatitis in American English) is a long-term skin disorder. [4] Symptoms include flaky, scaly, greasy, and occasionally itchy and inflamed skin. [2] [3] Areas of the skin rich in oil-producing glands are often affected including the scalp, face, and chest. [4]