3412 results
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Thrombocytosis - Differential ... Tissue Damage: • Post-op ... Non malignant hematologic ... thrombocytopenia Other: • Post-splenectomy ... Thrombocytosis #Differential
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... → Refer to hematology ... pancreatitis, Post-surgical ... Others: Asplenia/post-splenectomy ... Thrombocytosis #Platelets #Differential
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
Thrombocytosis - Differential ... rheumatologic, trauma) • Post-splenectomy ... Thrombocytosis #Differential ... causes #Platelets #hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Thrombocytosis - Differential ... sarcoidosis) • Post-splenectomy ... Thrombocytosis #Differential ... Diagnosis #Causes #hematology
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
(80-90%) P - Post ... Mnemonic #diagnosis #differential ... #hematology
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
- Polycythemia Differential ... Hypoxia-independent: Post-renal ... Polycythemia #Vera #PV #Differential ... Diagnosis #Algorithm #hematology
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Hemolytic anemia, Post ... intoxication, Post-splenectomy ... key #diagnosis #differential ... #hematology
Reactive or "Atypical" Lymphocytosis
Infection
 • Viral: EBV, CMV, HIV, Herpes viruses, Influenza, Varicella, HTLV-I
 • Bacterial:
• Trauma • Post ... Lymphocytosis #differential ... #diagnosis #hematology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Knee Effusions - Differential ... Behcet Disease Post-Infectious ... Effusions: - Hematologic ... Osteochondroma Hematologic ... Effusions #causes #differential
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
Tachypnea - Differential ... effusion/Tamponade Hematologic ... Tachypnea: • Post-Ictal ... Tachypnea #Hyperpnea #Differential