Search Results for: volar

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…ually are vesicles, not bullae. Erosive lichen planus affects volar skin extensively by ulceration diffusely; mucous membranes often involved concurrently. Oral lichen planus of the buccal mucosa especially creates a white reticulate meshwork and, at…

Histologic Diagnosis of Inflammatory Skin Diseases

Psoriasis

…dermatitis, and “id” reactions, when situated on volar skin share, with psoriasis a pattern of spongiotic psoriasiform dermatitis affiliated with scale-crust. At times, the diseases are differentiated from one another with great difficul…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…the epidermis, at first blush, looks just like that of normal volar skin, a clue to the correct diagnosis of lichen simplex chronicus is the presence of folliculosebaceous units (“hairy palm sign”). Figure 3.23 Lichenification as occurs i…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…The condition is a distinctive pattern of disease on or near volar skin (a superficial and deep perivascular infiltrate of lymphocytes accompanied by prominent edema in dermal papillae and, at times, a sprinkling of lymphocytes along the dermoepider…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…esence of folliculosebaceous units indicates that this is not volar skin, but skin that has been rubbed persistently, to and fro. The name given to the condition is lichen simplex chronicus. 10.23.4A: Perivascular dermatitis, psoriasiform + 10.23.4B:…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…dermal vesiculation in this section of a biopsy specimen from volar skin is consonant with allergic contact dermatitis, nummular dermatitis, dyshidrotic dermatitis, and an “id” reaction. Those four conditions are indistinguishable from on…

Histologic Diagnosis of Inflammatory Skin Diseases

Suction blister

…and the site anatomic from which a specimen usually comes is volar skin or near it. Cell-poor bullous pemphigoid is associated with some inflammatory cells, usually eosinophils and/or neutrophils. Laboratory confirmation None exists. Cause and mecha…

Histologic Diagnosis of Inflammatory Skin Diseases

Deep fungal infections

…t first blush to be focal mucinosis at a site other than near volar skin is a clue to cryptococcosis. Laboratory confirmation Definitive diagnosis depends on identification of organisms in tissue by stains specialized such as PAS (with and without di…