11 results
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... Parathyroid gland ... prostate (release of calcitriol ... Hypercalcemia #Causes ... endocrinology #diagnosis
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
- Differential Diagnosis ... adenoma, Parathyroid ... hyperplasia, Parathyroid ... diseases, Idiopathic calcitriol ... #Differential #Diagnosis
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
Hypoparathyroidism • Parathyroid ... Decreased synthesis of calcitriol ... Signs #Symptoms #Diagnosis
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 ... Parathyroid hormone–dependent ... Neoplasms - Parathyroid ... Hypercalcemia #Causes ... #Differential #Diagnosis
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
- Differential Diagnosis ... PTH: • Elevated Calcitriol ... #Differential #Diagnosis ... #Algorithm #causes
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
- Differential Diagnosis ... Destruction of parathyroid ... sunlight • Other Causes ... #Differential #Diagnosis ... #Algorithm #causes
Radial Fracture Due to Parathyroid Carcinoma- ...A plain radiograph of the left arm showed a diaphyseal
Fracture Due to Parathyroid ... had received a diagnosis ... with an intact parathyroid ... which is a rare cause ... year after the diagnosis
Mediastinal Mass - Differential Diagnosis
Anterior Mediastinal Mass:
 • Thymus (Thymoma, carcinoma, hyperplasia, cyst)
 • Lymphoma
 •
- Differential Diagnosis ... Intrathoracic thyroid, Parathyroid ... Tumors • Vascular Mases ... #Differential #Diagnosis
Causes of Hypocalcemia by Clinical Cause

Acute illness: pancreatitis, tumor lysis, severe illness - Secondary hyperparathyroidism from
Causes of Hypocalcemia ... by Clinical Cause ... hormone with parathyroid ... #Hypocalcemia #Causes ... #Differential #Diagnosis
Pseudogout: pathogenesis and clinical findings
 - Idiopathic (vast majority of cases) -> Mechanism unknown
 - Familial
vast majority of cases ... Incr levels of parathyroid ... Pathophysiology #Diagnosis