2201 results
Hypercalcemia - EKG Findings
Causes of Hypercalcemia 
• Malignancy 
• Milk-alkali syndrome 
• Vitamin D toxicity 
•
Hyperparathyroidism • Immobilization ... Electrocardiogram #Differential
Causes of Rhabdomyolysis - Differential Diagnosis
 • Drugs & Toxins (Statins, alcohol, cocaine)
 • Direct Muscle
Rhabdomyolysis - Differential ... Hypoxia (Prolonged immobilization ... Rhabdomyolysis #Differential
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Hypercalcemia - Differential ... Alkali Syndrome, Immobilization ... Hypercalcemia #Differential
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Hyperthyroidism, Immobilization ... Hypercalcemia #Causes #differential
Pathologic / Fragility Fractures - Differential Diagnosis Algorithm 
Tumours
 - See Bone Lesions Scheme
Paget's Disease
 -
Fragility Fractures - Differential ... Nutrition • Immobilization ... Pathologic #MSK #Differential
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Hypercalcemia - Differential ... Milk Alkali) • Immobilization ... Hypercalcemia #Differential
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
theophylline Other: immobilization ... Hypercalcemia #Causes #Differential
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
bone turnover • Immobilization ... endocrinology #diagnosis #differential
Primary and Secondary Causes of Osteoporosis

Primary osteoporosis 
 - idiopathic juvenile osteoporosis 
 -  postmenopausal
Other causes - immobilization ... Secondary #Causes #Differential
Rhabdomyolysis - Differential Diagnosis and Management Summary

Trauma:
 • Immobilization, Crush iniury, Compartment syndrome, Electrical injury
Exertional:
 •
Rhabdomyolysis - Differential ... Trauma: • Immobilization ... Rhabdomyolysis #Differential