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Differential Diagnosis in Dermatopathology


…on palms, soles and at sites of irritation, were precursors of melanomas. In fact, junctional nevi at all those sites now are acknowledged to be completely benign. It is exceptional for melanoma to develop in association with a pre-existing junctiona…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Mycosis Fungoides—Increasing in Incidence?

…s of that malignant neoplasm caused alarm about an epidemic of melanoma. There is, in fact, no epidemic; clinicians and histopathologists are now able to diagnose melanoma at a stage that was inconceivable 20 years ago. Similarly, only recently have…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Persistent Lentiginous Melanocytic Hyperplasia, Atypical Melanocytic Hyperplasia (Melanocytic Nuclear Atypia), Lamellar Fibroplasia, Concentric Fibroplasia, and Lymphocytes as Criteria for Diagnosis Histopathologic of Dysplastic Nevi?

…ases, “dysplastic nevus” is neither a precursor of melanoma nor a marker of risk for melanoma, contrary to what the advocates of it as “dysplastic” assert. When viewed clinically, the brown melanocytic nevus, conventionally te…

Dermatology Practical & Conceptual

The dermatoscopic universe of basal cell carcinoma

…e discriminated from squamous cell carcinoma (SCC), amelanotic melanoma and other non-pigmented tumors, while heavily pigmented variants have to be differentiated mainly from melanoma and nevi. Instead, the differential diagnosis of superficial BCC i…

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