Search Results for: nerves

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine Neoplasms?

…folliculo-sebaceous-apocrine units on one hand and eccrine units on the other; the nonepithelial adnexa are smooth muscles, nerves, and blood vessels. Each of those normal adnexal structures has its own distinctive histologic attributes that serve…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…ined to the dermis, except for tuberous and tendinous types that affect the subcutaneous fat 11. Granular cells in cutaneous nerves 11. No foam cells in cutaneous nerves 12. Little fibrosis 12. Marked fibrosis at times 13. No extracellular lipid 13….

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

An inflammatory disease caused by Mycobacterium leprae. It can involve internal organs or be localized to the skin, where its clinical presentation is dependent on the immunologic status of the host. Persons who are competent immunologically have…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ulosis and hyperkeratosis, it must have been rubbed persistently and forcefully, probably because of effects pruritogenic on nerves of enzymes released from neutrophils. Those effects could be the reason for the implacable pruritus associated with…

Spitz and Reed nevi: acquired or congenital?

Spitz and Reed nevi: acquired or congenital?

…al nevi, in particular, infiltration of the reticular dermis or subcutis and involvement of cutaneous appendages, vessels or nerves. As a common finding, melanocytes splay between collagen bundles singly or in double rows [4,10,11]. Recently, the…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Nevus Cells, Nevocytes, and Nevomelanocytes?

…dermis being derived from epidermal melanocytes, and nevomelanocytes in the lower dermis being derived from Schwann cells of nerves.” Rhodes AR. Neoplasms: benign neoplasias, hyperplasias, and dysplasias of melanocytes. In: Fitzpatrick TB,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Psychocutaneous Disorders?

…as a consequence of the involuntary pull of smooth muscles on hair follicles in response to powerful emotions? Skin contains nerves that are integral to the peripheral nervous system. As long as mortals think and feel, the effects of those thoughts…

Histologic Diagnosis of Inflammatory Skin Diseases

Chondrodermatitis nodularis helicis

…O. Light and electron microscopic immunohistochemical observations of p75 nerve growth factor receptor-immunoreactive dermal nerves in prurigo nodularis. Arch Dermatol Res 1999;291(1):14-21. Mattila JO, Vornanen M, Katila ML. Histopathological and…