Search Results for: melanocytes

Nail matrix melanoma: consecutive cases in a general practice

Nail matrix melanoma: consecutive cases in a general practice

…ht: ©2012 Rosendahl et al.] Figure 12B. High power micrograph of the boxed area in A with pan-melanoma stain. Plump atypical melanocytes are seen in lentiginous array (black arrows), in some parts confluent. Pagetoid spread of melanocytes is also…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Nevus?

…blue neuronevus. There is no place for the erroneous concept of nevus cells. The cells that constitute melanocytic nevi are melanocytes and should be called melanocytes. “Naevus, a mark; they are hairy, vascular, or pigmentary.” Fox WT….

Differential Diagnosis in Dermatopathology

Spitz’s nevus, compound type vs. Melanoma

…ird of the face, vertically and horizontally, distributed symmetrically and occurring mainly in postpubescent women as a consequence of the combined effects of estrogen and ultraviolet light on melanocytes….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Nuclear Atypia, Cytoplasmic Atypia, and Architectural Atypia?

…lanocytes have the same features as cytologically atypical cells in any neoplastic system. Such cells are larger than normal melanocytes or the intraepidermal melanocytes of an ordinary melanocytic nevus.” Clark WH Jr., Elder DE, Guerry IV D….

Review of The Pigmentary System: Physiology and Pathophysiology (2nd ed) by James J. Nordlund, Raymond E. Boissy, Vincent J. Hearing, et al.

Review of The Pigmentary System: Physiology and Pathophysiology (2nd ed) by James J. Nordlund, Raymond E. Boissy, Vincent J. Hearing, et al.

…analogy with epidermal melanocytes to arise in the neural crest and migrate onto the skin. It has been suggested that dermal melanocytes are simply melanocytes destined for the epidermis that have remained in the dermis. Because of the lack of…

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?

…ouette when formed fully, i.e., compound, symmetrical, well-circumscribed, slightly elevated, and composed of small nests of melanocytes situated at the dermoepidermal junction and in the papillary dermis. It seems simple—and it is! “The…