202 results
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pulmonary Renal ... Renal Syndromes ... vasculitis, Behcet disease ... Goodpasture's Disease ... #Renal #Syndrome
BEE Syndromes - Immune-mediated conditions affecting the brain, eye, and ear

Visual or auditory symptoms in conjunction
and less common diseases ... Inflammatory causes ... Vogt-Koyanagi-Harada (VKH) disease ... polychondritis • Behcet disease ... #differential #
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Pulmonary Renal ... Vasculitis - Anti-GBM Disease ... Vasculitis, Behcet's Disease ... , mitral valve disease ... #Renal #Syndromes
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
hormone–independent Renal ... Granulomatous disease ... Other endocrine diseases ... immobilization, Jansen disease ... #Differential #
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Lemierre's syndrome ... Non-infectious Inflammatory Diseases ... onset Still's disease ... dysfunction, Castleman disease ... , Kikuchi disease
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
Pneumonitis • Treatment ... Chemotherapeutic Systemic Disease ... Connective Tissue Disease ... interstitial #lung #disease ... #pulmonary
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... cirrhosis, nephrotic syndrome ... Pulmonary Diseases ... , CNS Disease, Meds
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... basement membrane disease ... of glomerular disease ... Renal Causes ... #urology #nephrology
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Interstitial Lung Diseases ... Connective Tissue Disease ... connective tissue disease ... Interstitial #Lung #Diseases ... #pulmonary #causes
Cystic Lung Disease
Upper Lobe Predominant: 
Langerhans Cell Histiocytosis, Pneumocystis Jiroveci, Hypersensitivity Pneumonitis, Neurofibromatosis Type 1, Paracoccidioidomycosis,
Cystic Lung Disease ... Chain Deposition Disease ... Metastatic Disease ... #Cystic #Lung #Disease ... #differential #