46 results
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Pseudohyperparathyroidism, Renal ... histoplasmosis) • Milk (calcium ... )-alkali syndrome ... differential #diagnosis #calcium ... #high #endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Renal Failure, Post-Renal ... Autosomal Dominant Calcium ... Other • Excess Calcium ... Immobilization • Adrenal ... Diagnosis #Algorithm #Endocrinology
Parathyroid Hormone (PTH) Effect in Calcium and Phosphorus
Calcium - Net Effect Hypercalcemia:
   ↑ intestinal
PTH) Effect in Calcium ... and Phosphorus Calcium ... - Net Effect Hypercalcemia ... #Phosphorus #pathophysiology ... #endocrinology
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... Lithium use • Calcium-sensing ... , adrenal, prostate ... • Milk-alkali syndrome ... #Causes #endocrinology
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
Causes of Hypercalcemia ... hypocalciuric hypercalcemia ... Other humoral syndromes ... thyrotoxicosis, adrenal ... Differential #Diagnosis #Endocrinology
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
Hypercalcemia of ... Malignancy - Pathophysiology ... and intestinal calcium ... Mediated - Stimulate calcium ... @kdjhaveri #Hypercalcemia
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - ... Hypocalciuric Hypercalcemia ... Tumors: Lung, SCC, renal ... Bony Mets - Calcium ... Algorithm #causes #endocrinology
Classification of Tumor Lysis Syndrome (TLS) and Treatment of Metabolic Abnormalities of TLS
Laboratory TLS:
 • Uric
of Tumor Lysis Syndrome ... 4.6 mg/dL • Calcium ... Intravenous fluids • Renal ... - Calcium gluconate ... #TumorLysis #Syndrome
21-Hydroxylase Deficiency (21-OHD): Pathogenesis and Clinical Findings
Autosomal recessive mutation in CYP21A2 coding for the enzyme 21-OHase
21-OHD in the adrenal ... Signs/Symptoms/Complications ... Hirsutism & acne • Infertility ... #21HydroxylaseDeficiency #21OHD #pathophysiology ... #genetics #endocrinology
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... Dehydration • Symptoms ... changes, stroke symptoms ... : • Pathophysiology ... hydration - Hyperkalemia