6 results
Hormonal Regulation of the Blood Calcium concentration

#Calcium #Regulation #Parathyroid #Calcitonin #Calcitriol #PTH #Endocrinology #Pathophysiology #Hormones
#Parathyroid #Calcitonin ... #Calcitriol #PTH
Multiple Endocrine Neoplasias (MEN syndromes) 

MEN I
• Hyperparathyroidism 
• Hypercalcemia 
• Possible ZE syndrome 
• Various
Various Pituitary path ... • Increased calcitonin ... • Increased calcitonin ... MultipleEndocrineNeoplasia #Differential
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Algorithm Elevated PTH ... Hypercalcemia Low PTH ... : • Elevated Calcitriol ... Hypercalcemia #Differential
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Hypercalcemia - Differential ... High or Normal PTH ... Hypercalcemia Low PTH ... diseases, Idiopathic calcitriol ... Hypercalcemia #Differential
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Hypercalcemia - Differential ... Malignancy • PTH-Related ... Excess Vitamin D/Calcitriol ... Hypercalcemia #Differential
Hypercalcemia - Hormones and Pathophysiology  
Calcitriol:
 • Bones: Enhances mineralization
 • GI Tract: ↑ Ca2+
Pathophysiology Calcitriol ... Ca2+, ↑ PO4- PTH ... Ca2+, ↓ PO4- Calcitonin