26 results
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Differential Diagnosis ... long-standing secondary ... Hypercalcemias (e.g ... 1,25-(OH)2D3 (e.g ... #Algorithm #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 ... Genetic disorders (e.g ... #Differential #Diagnosis ... #Endocrinology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
- Differential Diagnosis ... inflammatory disorders (e.g ... Myelodysplastic syndrome ... #Causes #hematology ... #secondary
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Causes of Secondary ... risk factors (eg ... hypertension (eg ... hypertension (eg ... Vasculitis • Endocrinologic
Hypocalcemia - Differential Diagnosis Algorithm - Low and High Phosphate
LOW PHOSPHATE
 - Low/NormaI PTH
D Deficiency (e.g ... Phenytoin, Nephrotic Syndrome ... Hypoparathyroidism (e.g ... High PTH • Secondary ... Algorithm #Phosphate #endocrinology
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
WBC >100k, + lab signs ... hydration - Hyperkalemia ... unless worrisome EKG ... #TLS #diagnosis ... #management #hematology
Syncope is a sudden, transient loss of consciousness, which is thought to be secondary to cerebral
thought to be secondary ... cardiac syncope, e.g ... carotid sinus syndrome ... orthostatic vital sign ... and an initial ECG
Malignant Adrenal Mass - Differential Diagnosis Algorithm
Suggestive of Malignancy: Inhomogenous Density, Delay in CT Contrast Washout
Releasing Carcinoma (e.g ... Other Source (e.g ... Polycystic Ovarian Syndrome ... Hypertension +/- Hypokalemia ... #Algorithm #Endocrinology
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
- Differential Diagnosis ... Liver Failure • Hypercalcemia ... Neoplastic / Hematologic ... • Drug Abuse (e.g ... Chronic Fatigue Syndrome
Causes of Hyperkalemia - Intercellular Shift - Differential Diagnosis Algorithm
Transcellular Shift - Appropriate renal excretion (GFR,
Causes of Hyperkalemia ... Intercellular Shift ... Transcellular Shift ... • Cell Lysis (e.g ... Tumor Lysis Syndrome