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Paraneoplastic pemphigus (PNP) is an autoimmune disorder stemming from an underlying tumor. It is hypothesized that antigens associated with the tumor trigger an immune response resulting in blistering of the skin and mucous membranes .
Paraneoplastic pemphigus: Non-Hodgkin lymphoma [nb 1] Chronic lymphocytic leukemia Castleman's disease [nb 1] Sarcoma Thymoma: Tripe palms: Lung cancer: Tripe palms with acanthosis nigricans: Stomach cancer: Pityriasis rotunda: Hepatocellular carcinoma Migratory thrombophlebitis Pancreatic adenocarcinoma Leser–Trélat sign: Gastrointestinal ...
Substrates used in indirect immunofluorescence studies for the different pemphigus variants Pemphigus variant Substrate Pemphigus foliaceous: Guinea pig esophagus Pemphigus vulgaris: Monkey esophagus IgA pemphigus: Cultured skin Paraneoplastic pemphigus: Rat bladder
Mucocutaneous pemphigus vulgaris: IgG: Desmoglein 3 Desmoglein 1: 130 160 Pemphigus foliaceus: IgG: Desmoglein 1: 160 Paraneoplastic pemphigus: IgG: Desmoglein 3 Desmoglein 1 BPAG1 [nb 1] Plectin Desmoplakin I [nb 2] Desmoplakin II Envoplakin Periplakin Alpha-2-macroglobulin-like-1: 130 160 230 500 250 210 210 190 170 Drug-induced pemphigus ...
Symptomatic features of paraneoplastic syndrome cultivate in four ways: endocrine, neurological, mucocutaneous, and hematological.The most common presentation is a fever (release of endogenous pyrogens often related to lymphokines or tissue pyrogens), but the overall picture will often include several clinical cases observed which may specifically simulate more common benign conditions.
Vulvar intraepithelial neoplasia (VIN) refers to particular changes that can occur in the skin that covers the vulva. VIN is an intraepithelial neoplasia , and can disappear without treatment. VINs are benign but if the changes become more severe, there is a chance of cancer developing after many years, and so it is referred to as a ...
The tissue is skin from a patient with Pemphigus vulgaris. Note the intercellular IgG deposits in the epidermis and the early intraepidermal vesicle caused by acantholysis. Pemphigus (/ ˈ p ɛ m f ɪ ɡ ə s / or / p ɛ m ˈ f aɪ ɡ ə s /) is a rare group of blistering autoimmune diseases that affect the skin and mucous membranes. [1]
[6] [1] Nikolsky's sign (gentle lateral pressure) on unaffected mucosa or skin raises a bulla. If no lesions are present on examination it may be useful way of demonstrating reduced epithelial adhesion. In contrast, in Pemphigus, the epithelium tends to disintegrate rather than form a bulla.