35 results
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Relative - Normal RBC ... Cyanotic Heart Disease ... Diagnosis #Algorithm #Causes ... #Hematology
Sickle Cell Disease - Pathophysiology of disease and complications 

Due to the deformed shape, HbS induces
Sickle Cell Disease ... - Pathophysiology ... of disease and ... #Pathophysiology ... Complications #Hematology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
) • Rheumatic Diseases ... : IgG4-Related Disease ... Rheumatoid Arthritis (RA ... (SPA) • Other Causes ... Differential #Diagnosis #rheumatology
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
RBCs Decreased RBC ... Anemia of Chronic Disease ... Disorder • RBC ... Diagnosis #Algorithm #Causes ... #Hematology
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gouty Arthritis) - MSK ... Case description ... - **MSK rads ... diffuse chondral disease ... #rheumatology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... cold agglutin disease ... • Intrinsic RBC ... Extravascular #Causes ... differential #diagnosis #hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... Neutrophils - Low RBC ... • Pancreatic Disease ... • Liver Disease ... #Hematology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... causes differentiated ... involvement: Anti-GBM Disease ... diagnosis #algorithm #rheumatology
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... Chain deposition disease ... HUS, autoimmune (RA ... #differential #hematology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Systemic disease ... arthritis - Juvenile RA ... Knee #Effusions #causes ... differential #diagnosis #msk