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Sometimes, seborrheic keratosis and basal cell carcinoma occur at the same location. [ 7 ] [ 8 ] At clinical examination, a differential diagnosis considers warts and melanomas . [ 4 ] Because only the top layers of the epidermis are involved, seborrheic keratoses are often described as having a "pasted on" appearance.
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 ...
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 ]
702.0 Actinic keratosis; 702.1 Seborrheic keratosis; 703 Diseases of nail. 703.0 Ingrown nail; 704 Diseases of hair and hair follicles. 704.0 Alopecia, unspec. 704.1 Hirsutism; 705 Disorders of sweat glands. 705.1 Prickly heat, heat rash. 705.83 Hidradenitis suppurativa; 706 Diseases of sebaceous glands. 706.0 Acne varioliformis; 706.1 Other ...
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)
Symptoms: Mole that is increasing in size, has irregular edges, change in color, itchiness, or skin breakdown. [1] Causes: Ultraviolet light (Sun, tanning devices) [2] Risk factors: Family history, many moles, poor immune function [1] Diagnostic method: Tissue biopsy [1] Differential diagnosis: Seborrheic keratosis, lentigo, blue nevus ...
Symptoms: skin growth usually occurring on the hands, feet, or genitals [1] [3] Duration: Months to years [1] Causes: Human papillomavirus [1] Risk factors: Public showers and pools, eczema [3] Differential diagnosis: Callus, seborrheic keratosis, squamous cell carcinoma [4] Prevention
Keratoacanthoma (KA) is a common low-grade (unlikely to metastasize or invade) rapidly-growing skin tumour that is believed to originate from the hair follicle (pilosebaceous unit) and can resemble squamous cell carcinoma.