Search Results for: scabies

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…ce of the “bite” of an insect; the female mite of scabies may induce nodules of lymphocytes and eosinophils (so-called nodular scabies) and the bite of a tick may bring into being a dense nodular mixed-cell infiltrate of lymphocytes, hist…

Histologic Diagnosis of Inflammatory Skin Diseases

Selection of the Site

…he skin, e.g., dermatitis herpetiformis, nummular dermatitis, scabies, Grover’s disease, and eosinophilic folliculitis, are exquisitely pruritic, scratching is an inevitable consequence, and signs of excoriation are nearly invariable. Excoriati…

Histologic Diagnosis of Inflammatory Skin Diseases

Parasitic infestations

…cercaria and in gnathostomiasis. In a few instances, such as scabies and pediculosis, the parasites reside in, and on, human skin. Once larvae of nematodes have entered human skin, they do not mature into the adult form; they die where they reside,…

Dermatology Practical & Conceptual

Trends in dermoscopy use in the UK: results from surveys in 2003 and 2012

…riety of dermatological conditions including infections e.g., scabies [6], inflammatory lesions, hair and nail-fold changes [7,8]. In addition, dermoscopy can be used to help monitor lesions over time or response to topical treatments such as 5-fluor…

Differential Diagnosis in Dermatopathology

Urticarial reaction to an arthropod assault vs. Urtica

Papules, nodules, vesicles, and sometimes bullae that develop in response to “bites” of arthropods, among the most common offenders being mosquitoes, bedbugs, and mites of scabies….

Differential Diagnosis in Dermatopathology

Discussions

…reaction replete with lymphoid follicles. Nodular lesions of scabies have denser and deeper infiltrates than conventional papules of scabies in which mites and their products, such as fecal nuggets, are housed in burrows in the cornified layer. Othe…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…f it, namely, larvae and nymphs, conducted within a burrow of scabies, namely, ingestion and defecation, gives rise to intense pruritus. The larva or “creeper” of Ancylostoma braziliense, the cause of cutaneous larva migrans, lives in a t…

Histologic Diagnosis of Inflammatory Skin Diseases

Nerves

…ese are dermatitis herpetiformis, Grover’s disease, and scabies. Scratching is thought to relieve itching by disturbing the rhythm of afferent impulses that travel toward the central nervous system. The frequency of nerve impulses associated wi…

Histologic Diagnosis of Inflammatory Skin Diseases

Atopic dermatitis

…that may become confluent to form slightly elevated plaques. Scabies favors interdigital webs and other intertriginous zones, and often is typified by the presence of burrows. Acrodermatitis enteropathica is marked by erosions around body orifices a…