by MH Team | May 7, 2025 | Hemostasis Disorders
Key Takeaways Petechiae are pinpoint (1-2mm), non-blanching red or purple spots on skin or mucous membranes as a results of small capillary bleeding. Causes ▾: Increased pressure (coughing, straining). Low platelet count (thrombocytopenia). Platelet...
by MH 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 MH 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.,...
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