Search Results for: melanocytes

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Atrophie Blanche?

…mal keratocytes into dermal melanophages and impotence of the melanocytes remaining at those sites, lesions become white macules and atrophic patches. The term atrophie blanche designates that stage terminal of livedo vasculitis. In short, the design…

Histologic Diagnosis of Inflammatory Skin Diseases

Merkel Cells

…pear in fetal skin by the 16th week of gestation, and, unlike melanocytes, they do not come from the neural crest, and, unlike Langerhans” cells, they do not come from the bone marrow; they originate in the epidermis itself, presumably from ger…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Precursor Lesions of Melanoma?

…part from the fact that all of them are neoplasms composed of melanocytes, they have nothing in common! Lentigo maligna is a synonym for a flat lesion of melanoma (melanoma in situ) situated on skin that has been damaged badly by the effects of ultra…

Clinical Case Studies

Nevus of Ota

…logy and pathogenesis are unknown, Nevus of Ota may represent melanocytes that failed to completely migrate from the neural crest to the epidermis during the embryonic stage.2 The two peak ages of onset are during early infancy and adolescence; this…

Histologic Diagnosis of Inflammatory Skin Diseases

Introduction

…, sebaceous units, apocrine units, eccrine units, nail units, melanocytes, Langerhans” cells, Merkel cells, structures of the dermoepithelial interface, blood vessels, lymphatics, collagen, elastic fibers, ground substance, muscles, and nerves….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Changing Mole?

…Neoplasms: benign neoplasias, hyperplasias, and dysplasias of melanocytes. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al., eds., Dermatology in general medicine. 4th ed. New York: McGraw-Hill, 1993:1001. Family physicians should be aware that a patien…

Histologic Diagnosis of Inflammatory Skin Diseases

Suggested Readings

…tic Fibrosis. San Francisco: San Francisco Press, 1982:35-52. Melanocytes Boissy RE. The melanocyte. Its structure, function, and subpopulations in skin, eyes, and hair. Dermatol Clin 1988;6:161-173. Riley PA. Melanin. Int J Biochem Cell Biol 1997;29…