2242 results
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Hypercalcemia - Differential ... Hyperparathyroidism: Parathyroid ... adenoma, Parathyroid ... hyperplasia, Parathyroid ... Hypercalcemia #Differential
Hypocalcemia Evaluation Algorithm 

(PTH = parathyroid hormone.)

#Hypocalcemia #Evaluation #Algorithm #Diagnosis #Differential
Algorithm (PTH = parathyroid ... Algorithm #Diagnosis #Differential
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Hypercalcemia Parathyroid ... hyperparathyroidism • Parathyroid ... adenoma • Parathyroid ... hyperplasia • Parathyroid ... endocrinology #diagnosis #differential
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
dihydroxyvitamin D can help differentiate ... activating mutation - Parathyroid ... Endocrinology #Differential
Mechanism of malignancy-associated hypercalcemia. Abbreviations: 1,25(OH)2D, 1,25-dihydroxyvitamin D; NHL, non-Hodgkin lymphoma; PTH, parathyroid hormone; PTHrP, PTH-related
lymphoma; PTH, parathyroid ... Mechanism #Frequency #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
Hypercalcemia Parathyroid ... hyperparathyroidism) Parathyroid ... Neoplasms - Parathyroid ... Hypercalcemia #Causes #Differential
Causes of Hypocalcemia by Clinical Cause

Acute illness: pancreatitis, tumor lysis, severe illness - Secondary hyperparathyroidism from
disease - Autoimmune parathyroid ... calcium-sensing receptor or parathyroid ... Low or absent parathyroid ... hormone with parathyroid ... Hypocalcemia #Causes #Differential
Mediastinal Mass - Differential Diagnosis
Anterior Mediastinal Mass:
 • Thymus (Thymoma, carcinoma, hyperplasia, cyst)
 • Lymphoma
 •
Mediastinal Mass - Differential ... Intrathoracic thyroid, Parathyroid ... Mediastinal #Mass #Differential
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Hypocalcemia - Differential ... Destruction of parathyroid ... #Hypocalcemia #Differential
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
PTH-mediated • Parathyroid ... Pathophysiology #Differential