85 results
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... Non malignant hematologic ... effect following treatment ... Diagnosis #Algorithm #Causes ... #Hematology
Uveitis - Definition, Causes and SUN Classification

Inflammation of the iris, ciliary body, vitreous, retina and/or choroid
Incidence
- Definition, Causes ... inhabitants 3rd leading cause ... retinal ischemia Causes ... Differential #Diagnosis #Ophthalmology ... #Rheumatology
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology ... Cytokines, Mast Cells ... perivascular inflammatory cells ... Vasculitis #HUV #Pathophysiology ... #Rheumatology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Eosinophilia, 500-1,500 cells ... for secondary causes ... eosinophilia (common causes ... glucocorticoid treatment ... Differential #diagnosis #hematology
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
= funny-shaped cells ... old, ~10,000 new cases ... only curative treatment ... Diagnosis #Management #treatment ... #hematology #oncology
Causes of Neutrophilia - Increased Neutrophils - Differential Diagnosis Algorithm
Infection
 • Bacterial
 • Abscess
 • Viral
Medications
Causes of Neutrophilia ... pancytopenia, blast cells ... Diagnosis #Algorithm #Causes ... #Hematology
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
(LP) tumour B cells ... Responsive to Treatment ... growth, response to treatment ... Classification #pathophysiology ... #Hematology #Diagnosis
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... high WBC count cause ... Lysis Syndrome: • Pathophysiology ... Lysis of tumor cells ... diagnosis #management #hematology
Erythroderma - Diagnostic Algorithm. Pathophysiology: 1) Extensive cutaneous capillary dilation, results in widespread exfoliation of the
Pathophysiology: ... germinative skin cells ... Causes: 1) Exfoliative ... Skin-homing T-cells ... #Diagnosis #Dermatology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... Drugs, Unknown cause ... Treatment: • ... diagnosis #management #treatment ... #summary #rheumatology