46 results
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Diagnosis Algorithm ... or normal): • Primary ... Hyperthyroid, Bony ... #causes #endocrinology
Primary Bone Tumors - Differential Diagnosis Algorithm 

Metastatic - Most common tumour in adults
 - Breast
Primary Bone Tumors ... - Differential ... Diagnosis Algorithm ... #Orthopedics #Causes ... #Oncology #Radiology
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
due to increased bone ... resorption: • Primary ... #differential # ... diagnosis #calcium ... #high #endocrinology
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Symptoms: Commonly no signs ... easily/weakness, Bone ... Hyperparathyroidism #diagnosis ... #endocrinology ... #Tertiary #pathophysiology
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... structure-related • Primary ... Hypercalcemia #Causes ... #endocrinology ... #diagnosis #differential
Diagram of different types of bone tumors that can occur around the knee on XRay -
involucrum • Paget ... blade of grass sign ... #Tumors #Diagnosis ... #Bony #Differential ... #Radiology #XRay
Pathologic / Fragility Fractures - Differential Diagnosis Algorithm 
Tumours
 - See Bone Lesions Scheme
Paget's Disease
 -
Diagnosis Algorithm ... Tumours - See Bone ... Lesions Scheme Paget's ... Phosphate Deficiency Primary ... #Orthopedics #Causes
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
involucrum • Paget ... lytic-blastic phase • Paget ... blade of grass sign ... #Differential # ... Diagnosis #Radiology
Schematic representation of the major sources of ammonia production and its excretory pathway (GI = gastrointestinal,
- Chemotherapy agents ... syndrome (Peds) - Primary ... deficiency #Ammonia #Pathophysiology ... Hyperammonemia #Differential ... #Diagnosis
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Hypercalcemia - Differential ... Diagnosis Algorithm ... Primary Hyperparathyroidism ... Cytokine-Mediated Bone ... #Endocrinology