6 results
Bone resorption and the relationship between osteoblasts and osteoclasts.  
RANK is expressed on the osteoclasts,
Bone resorption ... an increase in ion ... #Pathophysiology ... #Osteoclasts #Bone ... #Resorption #RANKL
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
Hypercalcemia of Malignancy ... - Pathophysiology ... intestinal calcium absorption ... in the bone • ... Differential #Diagnosis #algorithm
Causes of Hyperferritinemia - Differential Diagnosis
Ferritin > 1000
Ferritin is the storage form of iron. Increased hepcidin
be used by the bone ... increased GI absorption ... of iron. ... Malignancy - 24% ... Hematologic Malignancy
Fracture Healing (and disruptors of this process)
Inflammatory Stage (0-7d)
 • Fracture disrupts local blood vessels ->
forms bony callus ... Fluoroquinolones - Causes ... Insufficient Ca2+ & PO4- absorption ... from GI tract, bone ... #msk #Staging #pathophysiology
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
Complications Abnormal Osteoclasts ... cause excessive ... > Incr bone resorption ... resorption, Incr ... PagetsDisease #pathophysiology
Pseudogout: pathogenesis and clinical findings
 - Idiopathic (vast majority of cases) -> Mechanism unknown
 - Familial
vast majority of cases ... incr gut Ca2+ absorption ... is inhibited by iron ... phosphorous in bones ... Signs #Symptoms #Pathophysiology