Search Results for: halo 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…

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

Facial Melanosis, Melasma: Initial Evaluation

…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) Nevus of Ota, Nevus

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Halo Phenomenon?

…s in a wide spectrum of nevus types exhibiting a wide spectrum of histological atypia.” Mooney MA, Barr RJ, Muxton MG. Halo nevus or halo phenomenon? J Cutan Pathol 1995 Aug;22(4):342–48. “Regression of congenital melanocytic nevi is…

Therapeutic Strategies in Dermatology

Pruritic Urticarial Papules and Plaques of Pregnancy: Initial Evaluation

…e striae and spare the umbilicus and can be helpful clues for the diagnosis. Lesions are often surrounded by a thin blanched halo. The papules can coalesce into urticarial plaques with overlying pseudovesicles and rarely true vesicles. Targetoid or…

Therapeutic Strategies in Dermatology

Aphthous Ulcers (Recurrent Aphthous Stomatitis, Canker Sore): Key Points

…sa. Aphthous ulcerations (also called aphthae or canker sores) occur as shallow, rounded ulcers, with an inflammatory rim or halo, often with a pseudomembrane, which can fade from yellow/green to gray over time. The ulcers preferentially affect…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

…nanimity exists in any of those texts about nomenclature and classification of “blue nevi.” Some authors include nevus of Ota, nevus of Ito, and Mongolian spot among blue nevi, whereas others consider those pigmented patches to be…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Nevus?

…gy and pathology and that the term nevus be attended always by a modifier that gives specificity to it, e.g., elastic tissue nevus, nevus comedonicus, nevus anemicus, and Masson’s blue neuronevus. There is no place for the erroneous concept of…

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