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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 .
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.
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: IgG: Desmoglein 3 Desmoglein 1: 130 160 Subcorneal pustular dermatosis type ...
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. Nikolsky's sign is present in pemphigus and mucous membrane pemphigoid, but not in bullous pemphigoid.
Pustules may rupture, forming erosions or become crusted. Left untreated, PF in animals is life-threatening, leading to not only loss of condition, but also secondary infection. PV is a very rare disorder described in pet dogs and cats. Paraneoplastic pemphigus has been identified in pet dogs.
Paraneoplastic cerebellar degeneration (PCD) is a paraneoplastic syndrome associated with a broad variety of tumors including lung cancer, ovarian cancer, breast cancer, Hodgkin’s lymphoma and others. PCD is a rare condition that occurs in less than 1% of cancer patients.
Florid cutaneous papillomatosis (FCP) is an obligate paraneoplastic syndrome. FCP begins as the sudden onset of numerous cutaneous papillomas that are clinically indistinguishable from viral warts. The papillomas range from 1 to 3 mm in diameter may spread to involve the entire body, including the face.
Carcinoid syndrome is a paraneoplastic syndrome comprising the signs and symptoms that occur secondary to neuroendocrine tumors (formerly known as carcinoid tumors). [1] The syndrome is caused by neuroendocrine tumors most often found in the gut releasing biologically active substances into the blood causing symptoms such as flushing and diarrhea, and less frequently, heart failure, vomiting ...