Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Basal-Cell Carcinoma Common in Nevus Sebaceus?

…us-cell carcinoma and basal-cell carcinoma arising in a naevus sebaceous of Jadassohn: case report and literature review. Clin Exp Dermatol 2005 May;30(3):259-60. Virtually every textbook in which an entry about nevus sebaceus is found states that b…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Junctional Activity and Active Junctional Nevus?

…onal activity ceases and the lesion is composed only of dermal nevus cells (intradermal nevus).” Weedon D. Lentigines, nevi, and melanomas. In: Skin Pathology. 2nd ed. New York, NY: Churchill-Livingstone, 2002:806. “Intradermal nevi sho…

Clinical Case Studies

Nevus of Ota

…he left infraorbital region. There was no associated change in skin texture. No scleral pigment was noted. Figure 1. Nevus of Ota at patient’s initial presentation. Nevus of Ota was suspected because of the history and morphology. Nevus of O…

Differential Diagnosis in Dermatopathology

Dermatofibroma vs. Desmoplastic Spitz’s nevus

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

Differential Diagnosis in Dermatopathology

Spitz’s nevus, compound type vs. Melanoma

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

Differential Diagnosis in Dermatopathology

Nevus verrucosus vs. Acanthosis nigricans

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