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

…errucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary lesion or as multiple lesions that follow Blaschko’s lines and, when systematized, is almost always associated with other congenital…

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…

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

Key Points The therapy of malignant melanoma is determined by the histopathologic features (primarily tumor thickness, ulceration, regression, and mitotic index), by the location of the tumor, by the presence of regional or distant metastases 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,…

Therapeutic Strategies in Dermatology

Melanoma: Treatment

…, complete excisional biopsy with minimal margins, pathologically evaluated at multiple levels to determine the tumor thickness, as well as to determine presence of ulceration, mitotic index, evidence of regression, perineural or perivascular…

Therapeutic Strategies in Dermatology

Facial Melanosis, Melasma: Initial Evaluation

…neous lip, and nose. Central facial 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)…

Therapeutic Strategies in Dermatology

Melanoma: Clinical Cases

…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 mm2 She is diagnosed with Stage 1a melanoma…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

…being termed ‘cellular blue naevus.’ In the common variety bipolar and dendritic melanocytes lie singly or in masses in the dermis. . . . The cellular type is composed of the same elements as the ordinary type, but in addition possesses

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