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Amyloid Fibrils

Amyloid Fibrils

Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...

Amyloid Fibrils

Amyloid Fibrils

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Related Experiment Video

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Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas

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Published on: January 17, 2018

Sinonasal Globular Amyloidosis Simulating Malignancy: A Rare Presentation.

Binay Kumar¹, Bhawna Pant², Vikrant Kumar²

¹Department of Pathology, Government Medical College, Haldwani-Nainital, Uttarakhand, India. binaypgi@gmail.com.

Head and Neck Pathology

|January 19, 2016

Summary

This summary is machine-generated.

This case report highlights a rare instance of sinonasal amyloidosis, a condition mimicking nasal malignancy. Early diagnosis through histopathology and immunohistochemistry is crucial for effective management of this rare head and neck entity.

Area of Science:

Otorhinolaryngology
Pathology

Background:

Primary localized amyloidosis is rare in the head and neck, with the larynx being the most common site.
Amyloidosis localized to the sinonasal tract is exceptionally rare.

Keywords:

Amyloidosis Globular Nose

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