6 results
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Avg age of DX ... • Chronic lung ... lymphocytic interstitial lung ... DDX - Other causes ... hypogammaglobulinemia #immunology #hematology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status • Chronic lung ... infections Lungs ... to NTM: Chronic lung ... Hematologic malignancy ... diagnosis • Microbiologic
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Generally affects long ... • XR, MRI to dx ... diagnosis #causes #hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
rash) • Heart, lung ... kidney failure DDX ... Diagnosis #Management #Hematology ... #Rheumatology
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
delta are key to dx ... needs rx first and dx ... Better call hematology ... , this list is long ... Algorithm #workup #hematology
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
, verrucous) - Lung ... Hypercoagulable (APLAS) Microbiology ... Glomerulonephritis DDX