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Related Experiment Video

Updated: Jul 8, 2026

A Cryo-pulverization Protocol for Processing Mouse Paws to Evaluate Molecular Pathways of Tissue Inflammation in a Collagen Induced Arthritis Model

A Cryo-pulverization Protocol for Processing Mouse Paws to Evaluate Molecular Pathways of Tissue Inflammation in a Collagen Induced Arthritis Model

Published on: October 30, 2019

[Crystal-induced arthropathies].

J Zustin¹, M Fürst, G Sauter

¹Institut für Pathologie,Diagnostikzentrum, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Deutschland. j.zustin@uke.uni-hamburg.de

Zeitschrift Fur Rheumatologie

|January 25, 2008

Summary

Intraarticular crystals like calcium pyrophosphate dihydrate and monosodium urate cause joint inflammation and damage. Microscopic identification of these crystals is crucial for diagnosing conditions such as gout and chondrocalcinosis.

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Last Updated: Jul 8, 2026

A Cryo-pulverization Protocol for Processing Mouse Paws to Evaluate Molecular Pathways of Tissue Inflammation in a Collagen Induced Arthritis Model

A Cryo-pulverization Protocol for Processing Mouse Paws to Evaluate Molecular Pathways of Tissue Inflammation in a Collagen Induced Arthritis Model

Published on: October 30, 2019

Area of Science:

Rheumatology
Crystal-Induced Arthropathies
Diagnostic Pathology

Background:

Intraarticular crystals, including calcium pyrophosphate dihydrate (CPPD), monosodium urate monohydrate (MSUM), and basic calcium phosphates (BCP), are implicated in acute and chronic joint inflammation.
These crystalline deposits can lead to significant joint damage and are associated with conditions like chondrocalcinosis and gout.
Accurate diagnosis is essential for effective management and prevention of further joint deterioration.

Purpose of the Study:

To highlight the diagnostic significance of identifying intraarticular crystals.
To describe the characteristic macroscopic, radiographic, and microscopic findings associated with common crystal deposition diseases.
To provide a concise overview of the pathogenesis of these conditions.

Main Methods:

Utilized light and polarized microscopy for definitive crystal identification.
Examined gross macroscopic features of affected joints.
Analyzed contact radiographic findings typical of crystal deposition.
Correlated microscopic pathology with clinical presentations.

Main Results:

Demonstrated that microscopic crystal identification is the cornerstone of diagnosis for crystal-induced arthropathies.
Illustrated typical lesions of chondrocalcinosis, gout, and calcinosis through macroscopic, radiographic, and microscopic descriptions.
Provided insights into the pathogenesis linking crystal deposition to inflammation and joint damage.

Conclusions:

Microscopic examination of intraarticular crystals is paramount for diagnosing inflammatory joint diseases.
Understanding the distinct pathological findings aids in differentiating various crystal deposition disorders.
Pathogenesis involves crystal deposition leading to inflammation and subsequent joint damage, underscoring the need for accurate diagnosis.