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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

…neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different colors, shapes, and sizes, among them, macules and patches, papules and…

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…

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

…, red, purple). Nodular melanoma (NMM) typically presents as a solitary nodule that arises from a preexisting nevus or de novo. It may grow rapidly in thickness without radial spread (extension along the surface of the skin). Lentigo maligna melanoma…

Therapeutic Strategies in Dermatology

Melanoma: Treatment

…nded. For large lesions that cannot be excised without a major surgical procedure or significant cosmetic deformity, an incisional biopsy of the clinically thickest appearing area is reasonable. Once histologic features are determined, wide local exc…

Therapeutic Strategies in Dermatology

Facial Melanosis, Melasma: Initial Evaluation

Initial Evaluation Clinical images show homogeneously hyperpigmented macules and geographic or irregular patches typically located on forehead, zygomatic cheeks, upper cutaneous lip, and nose. Central facial involvement is most common but mandibular…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

so-called malignant Spitz nevus really is that. A melanocytic nevus is benign. A melanoma may develop in a preexisting melanocytic nevus, but the nevus itself is not malignant. Melanomas arise episodically in association with Clarks nevi, rar…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Nevus?

…ed, nevus pertains to a birthmark, i.e., a hamartoma. The word nevus in dermatology, however, is not used simply as a synonym for birthmark. It also is applied to a particular acquired proliferation of melanocytes known as a melanocytic nevus, e.g.,…

Dermatology Practical & Conceptual

The so-called dysplastic nevus is not dysplastic at all

…t that the lesion under discussion represented an intermediate step between nevus and melanoma. In an article by Clark and coworkers, they expressed this view in these words: “[dysplastic nevi] fit nicely into the schema of progression from hyp…

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