4 results
Hydroxyapatite Deposition Disease (HADD) - MSK Radiology
Imaging Findings:
 • Ovoid hypointense structures along the bursal surface
Hydroxyapatite Deposition ... consistent with Calcium Hydroxyapatite ... to the Calcium Hydroxyapatite ... description: • Hydroxyapatite ... shoulder with hydroxyapatite
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
phosphate (including hydroxyapatite
Differential Diagnosis of Acute Arthritis

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

Infectious arthritis: Bacteria, fungi,
cholesterol, pseudogout, hydroxyapatite
Low Alkaline Phosphatase - Hypophosphatasia 

Is Low Alkaline Phosphatase Of Clinical Importance?

ALP enzyme- Discovered in 1923
Low
pyrophosphate) blocks hydroxyapatite