110 results
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
accumulation of clinical ... Assessment • Clinical ... Treatment: • ... Lymphohistiocytosis #diagnosis #management ... #rheumatology
Pancytopenia - Differential Diagnosis

Congenital Diseases:
• GATA2 deficiency
• Fanconi’s anemia
• Wiskott-Aldrich syndrome
• Ribosomopathy or telomeropathy

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Congenital Diseases ... erythematosus • HLH ... consumption • Vitamin B12 ... deficiency Infections ... #Diagnosis #Hematology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
- Differential ... Megakaryopoiesis • B12 ... Alloimmune • anti-HLA ... Vasculitis • Infection ... #Hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... - Differential ... Myelofibrosis Infectious ... disorders • Celiac disease ... effect following treatment
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
: Overwhelming clinical ... age, however the disease ... : • Infection ... Lymphohistiocytosis #diagnosis #management ... #treatment #hematology
Demyelinating Diseases - Differential Diagnosis
 • Inflammatory: MS, ADEM, NMO, Paraneoplastic, Sjogren's, Polyarteritis nodosa, SLE
 •
- Differential ... Inflammatory: MS ... nodosa, SLE • Infectious ... Other: Vitamin B12 ... Diagnosis #causes
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Volume (MCV) - Differential ... Inflammation, Chronic Infection ... (>100 fL) • B12 ... #Hematology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... Framework Non-Infectious ... , Sarcoidosis, HLA-B27 ... rare), Idiopathic Infectious ... #Diagnosis #rheumatology
Hemophagocytic Lymphohistiocytosis (HLH) Treatment
Primary HLH:
 - HLH-94 Protocol
    • Dexamethasone
associated with infection ... or autoimmune disease ... for refractory disease ... #Treatment #management ... #hematology
Conditions Associated With Hyperferritinemia 
DDx of extreme hyperferritinemia >10,000
Not just HLH - in fact, most common
fact, most common causes ... Liver disease 3. ... - Malignancy—Hematologic ... Hyperferritinemia #differential ... #diagnosis #causes