22 results
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... Myelofibrosis Infectious ... Inflammatory: • IBD ... effect following treatment ... #Hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... Rebound effect from treatment ... Inflammatory Conditions: Rheumatologic ... Vasculitides, IBD ... #Algorithm #hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
→Activation of CD8 ... Treatment: • ... of emergency, ICU ... #management #treatment ... #summary #rheumatology
Idiopathic CD4 Lymphopenia (ICL) / Lymphocytopenia 

DIAGNOSTIC CRITERIA FOR ICL
 • Persistent CD4 T-cell lymphopenia
 •
DIAGNOSTIC ... CRITERIA FOR ICL ... myelodysplasia) • Infections ... #diagnosis #hematology ... #Differential #Causes
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... SCD, thalassemias ... drug induced • Infections ... #Differential #Diagnosis ... #hematology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
increases and ILD ... Decreased CD4 ... counts and a raised CD4 ... Dermatomyositis #rheumatology ... #dermatology #diagnosis
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
old, ~10,000 new cases ... risk-stratification • Risks: infection ... only curative treatment ... #Management #treatment ... #hematology #oncology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
for secondary causes ... drug reaction, infection ... glucocorticoid treatment ... #Differential #diagnosis ... #hematology #eosinophilia
Short Stature - Differential Diagnosis Algorithm
Normal Variant, Normal Puberty Onset (BA = CA)
 • Familial Short
Panhypopituitarism Treatment ... Celiac, IBD) • ... CRF) • Infection ... endocrinology #causes ... #pediatrics
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
and petechiae Causes ... Idiopathic • Infections ... aplastic anemia Treatment ... Anemia #oncology #hematology ... #diagnosis #management