نتایج جستجو برای: ocular amyloidosis
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The familiar amyloid polyneuropathy (FAP) is a rare autosomal-dominant systemic amyloidosis. Amyloid deposition occurs more frequently and extensively in the vitq. The increase in intraocular pressure (IOP) is a result of deposition of transthyretin (TTR) in trabecular meshwork. Rarely, the amyloid deposition in anterior segment can be more exuberant than in posterior segment. A 42 years old ma...
Background. Epithelial dysplasia is categorized as conjunctival/corneal intraepithelial neoplasia which is a precancerous lesion. The lesion is usually developed at the limbal region and grows towards central cornea in association with neovascularization into the lesion. Here, we report a case of isolated nonvascularized corneal epithelial dysplasia surrounded by normal corneal epithelium with ...
systemic amyloidosis and testicular interstitial tumor are rare conditions in birds and this is the first report in iran. a male zebra finch was presented because of white diarrhea, anorexia, loss of weight and lethargy. at necropsy, the small intestine was edematous and congested. the spleen appeared pale. the liver was large, firm and brown. one testis was cystic and neoplastic and the remain...
Primary cutaneous amyloidosis is limited to the skin without involving any other tissue. Nodular amyloidosis is rare, and atrophic nodular cutaneous amyloidosis is even rarer. We describe the fourth case of atrophic nodular cutaneous amyloidosis by searching PubMed databases. A 52-year-old female presented to our hospital with a 2-year history of orange papules and nodules without subjective sy...
Amyloid involvement of the tongue is almost always secondary to systemic amyloidosis. Isolated amyloidosis of the tongue is relatively rare and it accounts for less than 9% of all types of amyloidosis. We are presenting a case of a 54-year-old male patient who complained of an enlarged tongue and bilateral multiple swellings on the lateral borders of the tongue, which had been there since one y...
amyloidosis is a disorder of protein metabolism characterized by extracellular deposition of abnormal protein fibrils. it may either be localized to any organ or systematically distributed throughout the body. the biochemical nature of proteins varies but the physical and tinctorial properties are shared by all the amyloidogenic proteins. in the west, it is mainly composed of amyloid light (al)...
Introduction: Amyloid diseases have been known to be hereditary, including transthyretin (TTR) amyloidosis where subunit protein mutations may occur in genes for TTR leading to the deposition of fibrils (low molecular weight subunits (5 to 25 kD) of proteins) in extracellular tissues. By reducing the formation of TTR amyloid, diflunisal, a nonsteroidal anti-inflammatory drug (NSAID), has shown ...
Amyloid is an eosinophilic substance which appears “apple-green birefringence” in Congo red stained tissue sections under polarized light. This standard histological analysis is supported with immunochemistry technic using specific antibodies directed against most of the common human amyloid proteins, and also amyloid proteins can be identified with characteristic fibrillar appearance by electr...
Immunoglobulin-derived light chain amyloidosis can occasionally be associated with localized disease. We present a patient with localized lymph node light chain amyloidosis without an underlying monoclonal protein or lymphoproliferative disorder and review the literature of lymph node amyloidosis discussing work-up and risk factors for systemic progression.
Background Cardiac MRI (CMR) is increasingly used to further investigate patients in whom amyloidosis is suspected on echocardiography. Late gadolinium enhancement (LGE) reflects expansion of the interstitium, and circumferential subendocardial LGE has been reported to be a typical finding in AL amyloidosis; by contrast, a more diffuse transmural LGE pattern has been associated with ATTR (trans...
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