63 results
Pseudogout: pathogenesis and clinical findings
 - Idiopathic (vast majority of cases) -> Mechanism unknown
 - Familial
production - Hyperparathyroidism ... Incr levels of parathyroid ... Pseudogout #CPPD #Disease ... #Signs #Symptoms ... #Pathophysiology
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
hypocalcemia: - Hypoparathyroidism ... activating mutation - Parathyroid ... Chronic kidney disease ... Laboratory #Levels #Hyperparathyroidism
Causes of Hypercalcemia
Parathyroid hormone–dependent
Primary hyperparathyroidism
Familial hypocalciuric hypercalcemia
Lithium-associated
Tertiary hyperparathyroidism
Genetic disorders (e.g., multiple endocrine neoplasia type 1 or
Hypercalcemia Parathyroid ... ) Parathyroid hormone–independent ... Neoplasms - Parathyroid ... Granulomatous disease ... Other endocrine diseases
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Normal PTH: • Hyperparathyroidism ... : Parathyroid adenoma ... Skeletal metastatic disease ... disorders, Paget's disease ... Granulomatous diseases
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
structure-related • Primary hyperparathyroidism ... • Parathyroid ... Hyperthyroidism • Paget's disease ... Chronic kidney disease ... • Tertiary hyperparathyroidism
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Hyperparathyroidism ... • Secondary Hyperparathyroidism ... Phosphate Physical Symptoms ... pain Psychiatric Symptoms ... Secondary #Tertiary #pathophysiology
The pathophysiology of Primary hyperparathyroidism
#Pathophysiology #PrimaryHyperparathyroidism #Parathyroid gland #Hyperparathyroidism
The pathophysiology ... of Primary hyperparathyroidism ... #Pathophysiology ... PrimaryHyperparathyroidism #Parathyroid ... gland #Hyperparathyroidism
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Elevated - Secondary Hyperparathyroidism ... Inappropriately Normal/Low - Hypoparathyroidism ... Destruction of parathyroid ... , infiltrative disease
Initial treatment of renal bone disease and cinacalcet for secondary hyperparathyroidism
Phosphate binders reduce hyperphosphataemia and hyperparathyroidism.
of renal bone disease ... for secondary hyperparathyroidism ... hypocalcaemia and hyperparathyroidism ... #Pharmacology #Pathophysiology ... #Secondary #Hyperparathyroidism
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
Hypocalcemia • Hypoparathyroidism ... • Parathyroid ... Hypomagnesemia #Signs #Symptoms