12 results
Urine Microscopy Crystals
Uric Acid crystals:
 - Formation promoted by acidic urine
 - Seen in tumor lysis
Urine Microscopy ... specific systemic disease ... specific systemic disease ... - Diagnostic of ... #Microscopy #Crystals
Urine Microscopy - Kidney Stones and Crystals 

Uric Acid, Cystine, Hippurate, Cloth Fiber, Tyrosine, CaOx, CaP,
Urine Microscopy ... Kidney Stones and Crystals ... #Microscopy #Crystals ... Identification #Differential ... #Shapes #Diagnosis
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders - Differential ... Diagnosis Algorithm ... Gout - Uric Acid Crystals ... “Pseudogout” - Calcium ... #Differential #
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Crystal Deposition ... ochronosis and crystal ... #Joint #Pain #MSK ... approach #workup #differential ... #diagnosis #arthritis
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Diagnosis Algorithm ... polyangiitis (GPA)/microscopic ... Inflammatory #JointPain #MSK ... #Differential # ... Diagnosis #Algorithm
Differential Diagnosis of Acute Arthritis

Crystal-induced arthritis: Calcium oxalate, gout, cholesterol, pseudogout, hydroxyapatite crystals

Infectious arthritis: Bacteria, fungi,
Differential Diagnosis ... Crystal-induced ... arthritis: Calcium ... hydroxyapatite crystals ... #Differential #
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... basement membrane disease ... of glomerular disease ... Hematuria: • Urethritis ... #Hematuria #Differential
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
to Joint Pain - Diagnostic ... disease, spondyloarthropathies ... #Joint #Pain #MSK ... approach #workup #differential ... #diagnosis #arthritis
Hydroxyapatite Deposition Disease (HADD) - MSK Radiology
Imaging Findings:
 • Ovoid hypointense structures along the bursal surface
(HADD) - MSK Radiology ... consistent with Calcium ... pathology due to crystal ... Differential diagnosis ... #msk
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
polarized light microscopy ... intracellular urate crystals ... (gout) or calcium ... profile (e.g., calcium ... • Serum and urine