36 results
Approach to Leukocytosis - Differential Diagnosis Algorithm

Features of hematologic malignancy:
 • Symptoms: B-symptoms, bruising/bleeding, fatigue/weakness, immunosuppression
Leukocytosis - Differential ... Features of hematologic ... Matthew Ho, MD PhD ... #Leukocytosis #Differential ... Diagnosis #Algorithm #hematology
Approach to Elevated aPTT / PT - Differential Diagnosis Algorithm

aPTT: Intrinsic / Final
PT: Extrinsic / Final

By
Elevated aPTT / PT - Differential ... Matthew Ho, MD PhD ... INR #Algorithm #Hematology ... #differential #
Approach to Hypoproliferative Macrocytic Anemia

 • 812, Folate Deficiency
 • MDS+
 • Hypothyroid
 • Liver Disease
Matthew Ho, MD PhD ... Macrocytic #Anemia #differential ... diagnosis #algorithm #hematology
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
palms/soles - Differential ... rosea #clinical #dermatology ... #photo #PhysicalExam
Thrombocytopenia - Differential Diagnosis Algorithm

Decreased production:
 • Bone marrow suppression
 • Bone marrow failure
 • Bone
Thrombocytopenia - Differential ... Matthew Ho, MD PhD ... Thrombocytopenia #Differential ... Diagnosis #Algorithm #hematology
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Anemia (AIHA) - Differential ... Matthew Ho, MD PhD ... #Anemia #AIHA #Differential ... Diagnosis #Table #hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... → Refer to hematology ... Matthew Ho, MD PhD ... Thrombocytosis #Platelets #Differential ... Diagnosis #Algorithm #hematology
Thrombotic Microangiopathies - Primary Thrombotic Microangiopathy (TMA) - Differential Diagnosis Table

 • Thrombotic Thrombocytopenic Purpura (TTP)
Microangiopathy (TMA) - Differential ... Matthew Ho, MD PhD ... Microangiopathy #TMA #hematology ... #differential #
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias - Differential ... Matthew Ho, MD PhD ... Hemolytic #Anemias #Differential ... Diagnosis #Algorithm #hematology
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
Pancytopenia - Differential ... studies, PT/aPTT Differential ... Matthew Ho, MD PhD ... #Pancytopenia #Differential ... Diagnosis #Algorithm #hematology