by MyH Editorial Team | May 5, 2025 | Hemostasis Disorders, Platelet Disorders
Key Takeaways Ecchymoses are subcutaneous bleeding causing skin discoloration (bruise). Pathophysiology ▾: Small vessel damage leads to blood leakage into tissues; hemoglobin breakdown causes color changes. Causes ▾: Trauma, hematologic disorders,...
by MyH Editorial Team | May 2, 2025 | Hemostasis Disorders, Platelet Disorders
Key Takeaways Henoch-Schönlein Purpura (HSP) is a systemic small-vessel vasculitis characterized by palpable purpura, arthritis/arthralgia, abdominal pain, and often kidney involvement. Causes ▾: Exact cause unknown; likely triggered by infections (e.g.,...
by MyH Editorial Team | Apr 30, 2025 | Red Blood Cells
Key Takeaways Evans syndrome is. a rare autoimmune disorder with sequential or simultaneous autoimmune hemolytic anemia (AIHA) and immune thrombocytopenia (ITP), sometimes with autoimmune neutropenia (AIN). Pathophysiology ▾: Immune dysregulation leads to...
by MyH Editorial Team | Apr 28, 2025 | Red Blood Cells
Key Takeaways Wilson’s disease is a rare genetic disorder causing toxic copper accumulation in the liver, brain, and other organs. Pathophysiology ▾: Defective ATP7B gene impairs copper excretion into bile and incorporation into ceruloplasmin, leading to...
by MyH Editorial Team | Apr 26, 2025 | White Blood Cells
Key Takeaways Leukopenia is a total white blood cell count below 4,000 cells per microliter (< 4 x 10⁹/L) in adults. It signals a weakened defense against infection, not a disease in itself. Classification ▾: Mild leukopenia (3,000–4,000),...
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