13 results
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Causes of Hypercalcemia ... Hypercalcemia ... due to increased bone ... Pseudohyperparathyroidism, Renal ... #Causes #differential
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Differential Diagnosis ... Renal Failure, Post-Renal ... Cytokine-Mediated Bone ... Lymphomas) Metastatic Bone ... #Differential #
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - ... Differential Diagnosis ... Tumors: Lung, SCC, renal ... Miscellaneous - Bone ... #Differential #
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
Hypercalcemia of ... D - Increased renal ... resorption in the bone ... Cell of lung, Renal ... Pathophysiology #Differential
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... D) Increased bone ... breast, lung, renal ... lung cancer • Renal ... endocrinology #diagnosis #differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
diarrhea / IBD Renal ... abnormalities - Hypercalcemia ... - Familial renal ... Pancreatitis - Hungry bones ... Hypomagnesemia #Differential
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
metastasis (hungry bone ... (steatorrhea) Renal ... Tubulointerstitial renal ... Hyperparathyroidism - Hypercalcemic ... Causes #diagnosis #differential
Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Hypertension - BP > 140/90 (>130/80 for DM)
Hypertensive urgency
Hypertension - Differential ... multi-drug resistance) Renal ... abuse/ withdrawal Anatomic ... Hyperthyroidism • Hypercalcemia ... Secondary #Nephrology #Differential
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
metastasis (hungry bone ... steatorrhea) • Renal ... Tubulointerstitial renal ... Hyperparathyroidism, Hypercalcemic ... Hypomagnesemia #Causes #differential
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
Immunosuppressive agents, Renal ... Transplantation including bone ... Blood transfusion, Hypercalcemia ... Reversible course Differential