Hemorrhagic purpura | definition of hemorrhagic purpura …
hemorrhagic purpura explanation free
AB - Nontraumatic hemorrhage of the adrenal gland is uncommon. The causes of such hemorrhage can be classified into five categories: (a) stress, (b) hemorrhagic diathesis or coagulopathy, (c) neonatal stress, (d) underlying adrenal tumors, and (e) idiopathic disease. Computed tomography (CT), ultrasonography (US), and magnetic resonance (MR) imaging play an important role in diagnosis and management. CT is the modality of choice for evaluation of adrenal hemorrhage in a patient with a history of stress or a hemorrhagic diathesis or coagulopathy (anticoagulant therapy). CT may yield the first clue to the diagnosis of adrenal insufficiency secondary to bilateral massive adrenal hemorrhage; such insufficiency is rare but life threatening. US is the modality of choice for evaluation of neonatal hematoma, and MR imaging is helpful for further characterization. MR imaging is also useful in the diagnosis of coexistent renal vein thrombosis. When an adrenal abscess is suspected, percutaneous aspiration and drainage under imaging guidance should be performed. Hemorrhage into an adrenal cyst or tumor can cause acute onset of symptoms and signs in a patient without discernible risk factors for adrenal hemorrhage. A hemorrhagic adrenal tumor should be suspected when CT or MR imaging reveals a hemorrhagic adrenal mass of heterogeneous attenuation or signal intensity that demonstrates enhancement.
Purpura & bleeding diathesis & subarachnoid ..
due to inflammatory changes of small vessels, the main cause are immune disorders or infectious agent) Classification of Hemorrhagic diathesis Thrombocytopenia (decrease in the number of platelets) - Idiopathic thrombocytopenic purpura (ITP) - Thrombotic thrombocytopenic purpura (TTP) - Heparin-induced thrombocytopenia (HIT) - Hemolytic-Uremic Syndrome Coagulopathies (disorders of bleeding and coagulation) Disseminated intravascular coagulation Hemophilia Hemophilia A Hemophilia B (Christmas disease/