Vasculitis Flashcards
————- refers to inflammation and necrosis of bld vessels
VASCULITIS
These vessels may be damaged by
immune mechanisms,
infectious agents,
mechanical trauma,
radiation or toxins
Majority are thought to involve immune mechanisms including;
• -deposition of ———-
• - direct attack on vessels by ———-
• - various forms of ———- immunity
• -immune complexes
• - circulating antibodies
• - cell mediated immunity
Inciting agents may be associated with ———-
viral infection
Some vasculitides are associated with ———— antibodies
• These can be detected by indirect ———— assays using the patient’s serum and ——- fixed ———
Somevasculitidesareassociatedwith antineutrophil cytoplasmic antibodies (ANCA)
• These can be detected by indirect immunoflourescence assays using the patient’s serum and ethanol fixed neutrophils
POLYARTERITIS NODOSA
• PAN
• This acute, necrotizing, vasculitis affects mainly ———- -sized muscular arteries
• Male:Female = —:—
• — to —years
• — -ANCA immunoflourescence mainly against ————
POLYARTERITIS NODOSA
• PAN
• This acute, necrotizing, vasculitis affects mainly medium-sized muscular arteries
• Male:Female = 2:1
• 40-60 years
• P-ANCA immunoflourescence mainly against myeloperoxidase
POLYARTERITIS NODOSA
• PAN
• Pathology
• Lesions are ——— and may not involve the entire circumference of the vessel
• Most prominent feature is an area of the ——— and ———, fused into an ———— mass
• Inflammatory response involves the entire ————
• B/C of thrombosis in the artery, ———- are commonly found in the involved organs
• Small ——— may form
• Healed lesions have a ——- media
POLYARTERITIS NODOSA
• PAN
• Pathology
• Lesions are patchy and may not involve the entire circumference of the vessel
• Most prominent feature is an area of the media and adventitia, fused into an eosinophilic mass
• Inflammatory response involves the entire adventitia (periarteritis)
• B/C of thrombosis in the artery, infarcts are commonly found in the involved organs
• Small aneurysm may form
• Healed lesions have a fibrotic media
POLYARTERITIS NODOSA
• PAN
• Clinical Features
• ———-, ———, ————-, ———— and ———— are mostly involved
• ——— and ——— are common
• Without treatment PAN can be fatal
• ————— and ———— therapy can lead to remissions or cures.
POLYARTERITIS NODOSA
• PAN
• Clinical Features
• Kidneys, heart, skeletal muscle, skin and mesentery are mostly involved
• Fever and weight loss are common
• Without treatment PAN can be fatal
• Anti-inflammatory and immunosuppressive therapy can lead to remissions or cures.
HYPERSENSITIVITY ANGIITIS
• HA
• This is a broad category of inflammatory vascular lesions representing a reaction to foreign materials such as ——— or ———-.
• It includes;
• —————
• —————
HYPERSENSITIVITY ANGIITIS
• HA
• This is a broad category of inflammatory vascular lesions representing a reaction to foreign materials such as bacterial products or drugs.
• It includes;
• Cutaneous vasculitis
• Systemic hypersensitivity angiitis
HYPERSENSITIVITY ANGIITIS
• HA
• Cutaneous vasculitis
• May follow administration of drugs such as ———, ——- and ———
• ——— or ——— infections
• ———— purpura of the ———extremities is typical
•Superficial cutaneous venules display ———- necrosis and an ——— inflammatory reaction
• The disease is usually ———-
HYPERSENSITIVITY ANGIITIS
• HA
• Cutaneous vasculitis
• May follow administration of drugs such as aspirin, penicillin and thiazide diuretics
• Bacterial or viral infections
• Palpable purpura of the lower extremities is typical
•Superficial cutaneous venules display fibrinoid necrosis and an acute inflammatory reaction
• The disease is usually self limited
HYPERSENSITIVITY ANGIITIS
• HA
• Systemic hypersensitivity angiitis
• Also called —————-
•May be an isolated entity or a feature of other vascular diseases
• May also exhibit —— lesions
•A feared complication is ——- involvement, characterized by rapidly progressive ———- and ———-
• It is associated with the presence of ———
HYPERSENSITIVITY ANGIITIS
• HA
• Systemic hypersensitivity angiitis
• Also called microscopic polyarteritis
•May be an isolated entity or a feature of other vascular diseases
• May also exhibit skin lesions
•A feared complication is renal involvement, characterized by rapidly progressive glomerulonephritis and renal failure
• It is associated with the presence of ANCA
ALLERGIC GRANULOMATOSIS AND ANGIITIS
• Also known as ———-
• It occurs in (young/old?)people with ——- and features ———-
• Male:Female = —:—
• — to —years
• Affects ——— to —— sized vessels
• —% exhibit ——— or ———
ALLERGIC GRANULOMATOSIS AND ANGIITIS
• Also known as CHURG-STRAUSS SYNDROME
• It occurs in young people with asthma and
features eosinophilia
• Male:Female = 2:1
• 40-60 years
• Affects small to medium sized vessels
• 70% exhibit C-ANCA or P-ANCA
ALLERGIC GRANULOMATOSIS AND ANGIITIS
• Also known as ————
• There is widespread necrotizing vascular lesions of ——- and ——— sized arteries in multiple organs
• There is prominent involvement of the ———
• Other organs involved are the ———, ———, ——— and ——
ALLERGIC GRANULOMATOSIS AND ANGIITIS
• Also known as CHURG-STRAUSS SYNDROME
• There is widespread necrotizing vascular lesions of small and medium sized arteries in multiple organs
• There is prominent involvement of the lungs
• Other organs involved are the kidneys, heart, liver and CNS
————- is the most common vasculitis
GIANT CELL ARTERITIS
(TEMPORAL ARTERITIS, GRANULOMATOUS ARTERITIS)
GIANT CELL ARTERITIS TEMPORAL ARTERITIS, GRANULOMATOUS ARTERITIS
• The most common vasculitis
• Average age at onset is — years (— to —)
• It involves a focal, chronic, ———— inflammation
• Usually of the ———— arteries and there branches
• Male:Female = —:—
GIANT CELL ARTERITIS TEMPORAL ARTERITIS, GRANULOMATOUS ARTERITIS
• The most common vasculitis
• Average age at onset is 70 years (50-75)
• It involves a focal, chronic, granulomatous inflammation
• Usually of the temporal (large) arteries and there branches
• Male:Female = 1:3