Term
What are the other names for vasculitis? |
|
Definition
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Term
T/F
vascultits can only be from infections? |
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Definition
False
it can also be from immunologic reactions |
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Term
How does immune complex vasculitis occur? |
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Definition
-soluble antigen-antibody complexes
-complexes deposit on arterial wall
-complexes activate complement
-PMNs attach
-release lysosomal enzymes
-damage and necrosis
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Term
What are the types of large vessel vasculitis? |
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Definition
Giant cell arteritis (temporal)
Takayasu arteritis |
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Term
What are the medium-sized vascultitis? |
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Definition
polyarteritis nodosa
Kawasaki disease (Mucocutaneous Lymph Node Syndrome)
thromboangitis obliterans
(Buerger's) |
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Term
What are the small vessel vasculitis? |
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Definition
Wegener's granulomatosis
Allergic granulomatosis (Churg Strauss Syndrome)
Leukocytoclasic vasculitis (hypersensitivity)/Microscopic polyangitis
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Term
What is polyarteritis Nodosa? |
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Definition
acute necrotizing vasculitis affecting medium and small muscular arteries in young ppl |
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Term
What are the characteristics of Allergic granulomatosis angitis
(Churg-Strauss Syndrome)? |
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Definition
-systemic vasculitis with lots of eosinophilia
-ppl with asthma
-necrosis od small and medium arteries, arterioles, veins
-intra and extra vascular granulomas |
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Term
What is hypersensitivity angiitis
(leukocytoclastic)? |
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Definition
-affects small vessel
-all lesions occur around the same time
-fibroid necrosis and fragmented neutrophils in walls |
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Term
What are the traits of Wegener's Granulomatosis? |
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Definition
-necrosis, granulomatous inflammation, vasculitis of small arteries and veins
-necrotic granulomas of upper and lower respiratory tract
-renal disease
-sinusitis, pneumonitis, hematuria, proteinuria |
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Term
What does this describe?
-focal, chronic granulomatous inflammation of large and medium muscular vessels
-affects temporal and cranial arteries
-gives visual problems in half of patients
|
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Definition
Giant cell (temporal) arteritis |
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Term
What are the traits of Takayasu arteritis? |
|
Definition
-affects aortic arch
-mononuclear infiltrate of adventitia (gets thick)
-affects young women
-pulseless disease |
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Term
What are the traits of Kawaski Disease (muco-cutaneous Lymph Node Syndrome? |
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Definition
-affects kids
-thrombosis
-fever, rash, conjunctival/oral lesions
-necrosis vasculitis
-coronary artery aneuryms |
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Term
What are the traits of thrombo-angiitis obliterans (Buerger's Disease)? |
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Definition
-occluded and inflammed small/medium vessels
-extremities
-vascular wall polys
thrombosis with microabscess
intermittent claudication and severe pain |
|
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Term
What is Raynaud's Disease? |
|
Definition
-young women get vasoconstriction of vessels in extremities from a cold or emotional stimuli
-benign course
-no underlying disease |
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Term
What is Raynaud's Phenomenon? |
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Definition
same as raynaud'd disease but due to underlying disorder like lupus, buerger's, or a drug rxn |
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Term
What are the two major causes of aneurysms? |
|
Definition
-atherosclerosis
-cystic medial necrosis |
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Term
What are the clinical symptoms of aneurysms? |
|
Definition
-rupture with massive hemorrhage
-impingement on adjacent structures
-occlusion of vessels
-emboli |
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Term
What is a berry aneurysm? |
|
Definition
small spherical aneurysm frequently in brain |
|
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Term
What is a saccular aneurysm? |
|
Definition
aneurysm that varies in size, spherical and filled with thrombus |
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Term
What is a fusiform aneurysm? |
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Definition
aneurysm that is up to 20cm and get progressive dilatation of the vessel |
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Term
What the three main types of aneurysms? |
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Definition
arteriosclerotic
syphilitic
dissecting |
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Term
What is an arteriosclerotic aneurysm? |
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Definition
most common type and affects the abdominal aorta and common iliacs |
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Term
What is an syphillitic aneurysm? |
|
Definition
uncommon one that confined to thoracic aorta /narrow vasa vasorum lumen cause ischemia and tree bark appearance |
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Term
What is an dissecting aneurysm? |
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Definition
aneurysm mainly in aorta/ blood goes into the vessel wall where there is an intimal tear (predisposing factors are hypertension and Marfan's syndrome) |
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Term
What increases risk for varicose veins? |
|
Definition
-age
-being a woman
-pregnancy
-genes
-obesity |
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Term
What are varicose veins called at other sites of the body? |
|
Definition
hemorrhoids
esophageal varices |
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Term
What are the two groups for venous thrombi? |
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Definition
thrombophlebitis
phlebothrombosis |
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Term
What is
thrombophlebitis? |
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Definition
inflammation in the vein wall with secondary thrombosis |
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Term
What is
phlebothrombosis? |
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Definition
primary thrombi with secondary changes to the wall |
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Term
What are the clinical setting spredisposing to venous thrombosis? |
|
Definition
-cardiac failure
-neoplasia
-pregnancy
-postop state
-prolonged bed rest |
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Term
|
Definition
when bacteria and inflammatory cells gain entrance to the lymph and passed to regional lymph |
|
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Term
|
Definition
occlusion of lymphatic vessels with accumulation of interstitial fluid in affected area |
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Term
What are the common cuases of lymphedema? |
|
Definition
-radial surgery
-filariasis
-postradiation fibrosis
-potinflammatory thrombosis and scarring
-malignant tumors |
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Term
What are the three types of vascular tumors? |
|
Definition
-benign
-intermediate (borderline/ low-grade malignant)
-malignant |
|
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Term
What are the benign neoplasms? |
|
Definition
-capillary hemangioma
-cavernouse hemangioma
-pyogenic granuloma
-glomus tumor (glomangioma)
-telangiectasis(vascular ectasias)
-lymphangiomas
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Term
What are the distinctive features of capillary hemangioma? |
|
Definition
-largest single group
-juvenille strawberry typre capillary hemangiomas
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Term
What are the distinctive features of cavernous hemangioma? |
|
Definition
-in large vascular channels
-can be in the brain
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Term
What are the distinctive features of pyogenic hemangioma? |
|
Definition
-bleed easily and often ulcerate
-don't reoccur after excision |
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Term
What are the distinctive features of glomus tumor? |
|
Definition
-most seen on fingers/ toes/ under nails
-painful to touch |
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Term
What are the distinctive features of telangiectasis (vascular ectasias)? |
|
Definition
-group of abnormal blood vessels
-focal red lesion
-congenital |
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Term
What are the distinctive features of lymphangiomas? |
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Definition
- in the lymph
-can be cavenous
-in children in the neck
-dilated disk spaces/ not encapsulated
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Term
What are the intermediate grade neoplasms? |
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Definition
-hemangioendothelialioma
-Kaposi Sarcoma |
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Term
What are the characteristics of the hamangioendothelioma? |
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Definition
-primarily endothelial cells
-in skin, spleen, liver
-epithelioid hemangioendothelioma are around medium and large veins
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Term
What are the forms of Kaposi Sarcoma? |
|
Definition
-chronic (classic/European)
-lymphadenopathis (African/Endemic)
-transplant-assciated
-AiDS-associated (Epidemic) |
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Term
What are the characteristics of Chronic Kaposi Sarcoma? |
|
Definition
-in older men
-multiple red/purple nodules in lower extremities
-localized to the skin and subcutaneous tissue |
|
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Term
What are the characteristics of Lymphadenopathic Kaposi Sarcoma? |
|
Definition
-in young South African kids with lymphadenopathy |
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Term
What are the characteristics of transplant-associated Kaposi Sarcoma? |
|
Definition
-in transplant recipients with high dose immunosuppressice therapy
-localized to skin or widely metastatic |
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Term
What are the characteristics of AIDS associated Kaposi Sarcoma? |
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Definition
-in AIDS patients
-mostly homosexual men
-in various areas but involved in lymph nodes and gut early |
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Term
What are the malignant neoplasms? |
|
Definition
-angiosarcomas
-hemangiopericytoma |
|
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Term
What are the characteristics of angiosarcomas? |
|
Definition
-malignant neoplasms with masses of endothelial cells
-in elderly
-most often seen on skin, breast, soft tissue, and liver
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|
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Term
Hepatic angiosarcomas are of interest when found why? |
|
Definition
b/c associated with arsenic, thorotrast, and polyvinyl chloride |
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Term
Lymphangiosarcomas noccur after what? |
|
Definition
radical mastectomy for breast cancer |
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Term
What are the characteristics of hemangiopericytoma? |
|
Definition
-rare
-come from pericytes
-common in extremities
-highyl malignant
-metastasize to lungs, bone, liver |
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