Search Results for: clark's nevus

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A Clinical Atlas of 101 Common Skin Diseases

Nevus Sebaceus

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A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp.

A Clinical Atlas of 101 Common Skin Diseases

Nevus Sebaceus

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary lesio…

A Clinical Atlas of 101 Common Skin Diseases

Melanocytic Nevi and Melanotic Macules

Hamartomas (“congenital” melanocytic nevi) and benign neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different colo…

A Clinical Atlas of 101 Common Skin Diseases

Epidermal Nevi

Epidermal nevi are hamartomas in which the epidermis is abnormal, being hyperkeratotic, and in which lesions are aligned along Blaschko’s lines….

Therapeutic Strategies in Dermatology

Melanoma: Key Points

…the skin) as well as presence of ulceration and mitotic index seen on biopsy. The major independent risk factor is tumor thickness measured in millimeters (Breslow depth). Depth of invasion is also determined by Clarks level (depth based on histolog…

A Clinical Atlas of 101 Common Skin Diseases

Melanoma

A malignant neoplasm of melanocytes that, in the skin, begins as a macule and may become a patch or a papule. A flat lesion of melanoma tends to be asymmetrical, poorly circumscribed with a scalloped, jagged, or notched border, and variegate, mostly…

Therapeutic Strategies in Dermatology

Melanoma: Treatment

…(to show histologic circumscription) and full depth of the lesion are imperative to accurate evaluation. An excisional biopsy is highly recommended when possible. The pathology report must include the excision margins, the tumor thickness, the Clark

Therapeutic Strategies in Dermatology

Facial Melanosis, Melasma: Initial Evaluation

…l involvement is most common but mandibular involvement may also occur. Differential diagnosis Photoallergic / phototoxic contact dermatitis Melanosis of Riehl’s (likely a photo-distributed contact dermatitis) Nevus of Ota, Nevus of Hori (mainl…

Therapeutic Strategies in Dermatology

Melanoma: Clinical Cases

…e”” that rapidly developed on the right leg A full-body skin examination is performed and does not identify any other suspicious lesions Biopsy: melanoma, 0.7 mm thickness, Clarks level II. No ulceration present, and mitotic index <1 per mm…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

…here are variations aplenty on the theme. In actuality, what is called blue nevus is many very different types of congenital melanocytic nevi. Because we elected to name acquired melanocytic nevi eponymically (i.e., Clark, Spitz, and Reed), because s

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