Search Results for: nerves

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Atopic Dermatitis?

…at was the belief of those who first introduced the term “neurodermatitis,” to wit, that alteration of cutaneous nerves, especially hypertrophy of fascicles of them, is responsible for the condition being brought about. Those masters of…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

…roblastic sarcoma, (3) . . . a plexiform neuroma constituted of interlaced ribbons with large knots of voluminous [or bulky] nerves . . .” Masson P. Système Mélanogène. In: Tumeurs Humaines: HistologieDiagnostic et Techniques [Human tumors:…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…in and around cutaneous nerves and adnexal epithelium in the deep reticular dermis 4. No infiltrate of inflammatory cells in nerves or adnexal epithelium usually 5. Cutaneous nerves often missing consequent to products of inflammatory cells 5….

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…es of necrosis in the context of signs of borderline leprosy are indications that the patient is in reaction. Involvement of nerves by lymphocytes is not, in itself, a sign of a reactional state; lymphocytes sometimes are present in nerves of…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Myxoma?

…known more popularly as “neurothekeoma,” which is a benign neoplasm not of mucin but stromal cells of peripheral nerves. Parenthetically, both “intramuscular myxoma” and “cardiac myxoma” represent deposits of…

Histologic Diagnosis of Inflammatory Skin Diseases

Introduction

…ctures of the dermoepithelial interface, blood vessels, lymphatics, collagen, elastic fibers, ground substance, muscles, and nerves. The strategy is to inform about how the skin looks by examination grossly and by inspection using conventional…

Histologic Diagnosis of Inflammatory Skin Diseases

Nail Units

…f a nail. Nails have several functions. Most important, they protect the terminal phalanges. A network of myelinated sensory nerves in the dermis of the nail bed, some nerves of which terminate near Merkel cells within the epithelium of the nail…

Histologic Diagnosis of Inflammatory Skin Diseases

Sebaceous Units

…positive, and by a thin, highly vascular zone of periadnexal connective tissue. Sebaceous glands are not innervated by motor nerves. The mite, Demodex folliculorum, is present commonly not only within infundibula, but also within sebaceous ducts of…

Dermoscopic findings in a patient with multiple piloleiomyomas

Dermoscopic findings in a patient with multiple piloleiomyomas

…1]. These tumors are painful on exposure to cold and trauma; pain could result from local pressure by the tumor on cutaneous nerves [3]. The main differential diagnosis consists of other dermal nodular lesions like dermatofibroma, eruptive…

Histologic Diagnosis of Inflammatory Skin Diseases

Langerhans’ Cells

…epidermis where they seem to touch Langerhans” cells, thereby creating a link between the nervous and immune systems. Nerves, by virtue of release from them of neuropeptides, such as calcitonin gene-related peptide, are able to modulate the…