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Embolism
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- 2. Definition • Is theprocess of partial or complete obstruction of some part of the cardiovascular system by mass carried in the circulation. • Embolus- intravascular mass detached from its site of origin.
- 3. Classification Material Infected SourceFlow of blood Solid Sterile Cardiac Paradoxical Liquid Infected Arterial Retrograde Gas Venous Lymphatic
- 4. Types Type Origin Systemic Leftventricle Fat Trauma of bone Air Obstructive trauma Decompression sickness Descent drivers Amniotic fluid Components of amniotic fluid Atheroembolism Atheromatous plaques Tumour Tumour fragments Pulmonary Lower leg veins
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- 6. Etio-pathogenesis 1. Large veinfrom lower legs 2. Stasis of venous blood 3. Hypercoagulable state 4. Saddle embolus
- 8. Fat embolism 1. Obstructionof the arterioles and capillaries by fat globules 2. Due to trauma of bone & soft tissue 3. Extensive burns 4. DM 5. Fatty liver 6. Pancreatitis 7. Sickle cell anemia
- 12. Morphology 1. Lungs –Hyperemia, Edema ,Petechial hemorrhage 2. Brain - Petechial hemorrhage 3. Kidney – Reduced GFR
- 13. Decompressionsickness •Special form ofgas embolism •Caisson’s disease, Driver's palsy, Aeroembolism
- 16. Amniotic fluidembolism • Mostserious • Unpredictable • Unpreventable cause of Maternal mortality.
- 19. Morphology 1. Hemorrhage 2. Congestion 3.Edema 4. Right side heart failure
- 20. Tumour embolism • Malignanttumour cells invade the blood vessels • Clear cell carcinoma of kidney • Lung carcinoma • Malignant melanomas
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- 22. DEFINITION • Is theprocess of tissue necrosis Usually coagulative type from ischemia • Localized area of necrosis
- 23. Etiology 1. Sudden interruptionof blood flow 2. Stagnant hypoxia 3. Nonocclusive circulatory insufficiency
- 24. Types Colour Age Infection Pale(kidney,Heart,Spleen) Recent Infected Red ( lungs,intestine) Old Sterile
- 26. Morphology 1. Wedge shaped 2.Apex pointing towards the occlusion 3. Base on the surface 4. Arterial occlusion-pale 5. Venous occlusion- hemorrhagic 6. Recent infarct – elevated 7. Old infarct - shrunken
- 27. 1. Coagulative necrosis 2.Brain – liquefactive necrosis 3. Inflammatory reactions 4. Fibrous scar
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