1927 results
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
deficiency) • Infection ... Sepsis • Non-infectious ... (malignancy, rheumatologic ... causes #Platelets #hematology
CMV vs EBV - Mononucleosis
Acute CMV Infection:
 • Asymptomatic (most common)
 • Infectious mononucleosis (fever/chills, malaise)
CMV vs EBV - Mononucleosis ... Acute CMV Infection ... most common) • Infectious ... BrighamChiefs #CMV ... diagnosis #comparison #infectious
Causes of Leukocytosis and Leukopenia - Differential Diagnosis
 • Eosinophilia (AEC > 500, hypereosinophilia > 1500):
Connective Tissue, Infections ... Lymphocytosis: Infection ... Lymphocytopenia: Infections ... • Neutropenia: Infections ... Diagnosis #causes #hematology
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Pseudotumor - Infectious ... • EBV • CMV ... History of Bleeding, Infection ... Algorithm #Causes #Hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Triggering factor (infection ... +: Virus (EBV, CMV ... Still disease, Infection ... or biologics (CMV ... treatment #summary #rheumatology
IDSA Aspergillosis Treatment
 • Invasive pulmonary aspergillosis (IPA)
 • CNS aspergillosis
 • Cardiac Aspergillus infection
 •
Cardiac Aspergillus infection ... • Aspergillus infections ... of eye Infectious
Blurry vision in a patient with HIV/AIDS
Anterior Segment:
 • Herpes zoster ophthalmicus
 • Keratitis (HSV, Staph,
Cocci*, Toxo*, non-infectious ... retinopathy* • CMV ... ARN) (VZV >HSV, CMV ... ) (VZV > HSV, CMV ... • Choroidal infections
Lymphadenopathy - Differential Diagnosis Algorithm
Localized: 
 • Cervical: EBV, CMV, HIV, Toxo, TB, Lymphoma, Head /
Cervical: EBV, CMV ... Melanoma • Axillary: Infection ... Sexually transmitted infections ... , Sjögren's • Infection
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... Inflammatory Conditions: Rheumatologic ... TPO, TPO-RA • Infections ... : Chronic infections ... bacterial and viral infections
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
• Trauma Non-infectious ... Organ Specific Infection ... • Infectious ... disease Viral Infection ... HIV • EBV • CMV