24 results
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Alloimmune • anti-HLA ... Vasculitis • Infection ... Prosthetic Heart ... #Hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Triggering factor (infection ... Still disease, Infection ... Drugs, Unknown cause ... Lymphohistiocytosis #diagnosis #management ... treatment #summary #rheumatology
Causes of Localized Lymphadenopathy - Differential Diagnosis Algorithm
Cervical:
 - Anterior
     • Infection
Anterior • Infection ... Axillary: • Infection ... (In absence of infection ... pathologic): • Infection ... #Hematology #Oncology
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... Pseudotumor - Infectious ... History of Bleeding, Infection ... Diagnosis #Algorithm #Causes ... #Hematology #Oncology
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Lymphohistiocytosis (HLH ... can mimic common infections ... Treatment: • Infection ... Lymphohistiocytosis #diagnosis #management ... #treatment #hematology
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
Diagnosis and Management ... old, ~10,000 new cases ... risk-stratification • Risks: infection ... #treatment #hematology ... #oncology
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
a dermatophyte infection ... Caused by saprophytic ... meatballs appearance Management ... Tinea #Versicolor #Dermatology ... SkinRash #Diagnosis #Management
Hemophagocytic Lymphohistiocytosis (HLH) Treatment
Primary HLH:
 - HLH-94 Protocol
    • Dexamethasone
steroids • In mild cases ... associated with infection ... Options for severe cases ... #Treatment #management ... #hematology
Kerion
Raised, boggy lesion with heaped up purulent nodules 
Caused by host's response to a fungal ringworm
purulent nodules Caused ... fungal ringworm infection ... Griseofulvin #Kerion #Dermatology ... #Diagnosis #Management
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
lymphohistiocytosis (HLH ... SLE], AOSD) • Infection ... hypersensitivity syndromes • HLH ... Syndrome #Diagnosis #Management ... #Hematology #Rheumatology