Infectious Diseases Flashcards
Antibodies directed against proteinase-3 detected as diffuse granular cytoplasmic staining pattern in neutrophils
cANCA (cytoplasmic anti-neutrophil cytoplasmic antibodies)
Antibodies directed against myeloperoxidase with perinuclear or nuclear staining in neutrophils
pANCA (perinuclear antineutrophil cytoplasmic antibodies)
First step in the workup of a patient with suspected vasculitis
Exclude other diseases
Symptoms suggestive of vasculitis
Palpable purpura, pulmonary infiltrates, microscopic hematuria, chronic inflammatory sinusitis, mononeuritis multiplex, unexplained ischemic events and glomerulonephritis
Granulomatous necrotizing vasculitis of the triad of upper and
Wegener’s granulomatosis
Non-granulomatous inflammation of small arteries and veins including venules, glomerulonephritis, usually with no upper airway involvementand no pulmonarynodules, (+) pANCA
Microscopic polyangitis
Asthma, peripheral and tissue eosinophila, extravascular
Churg-Strauss
Necrotizing vasculitis, renal and visceral artery involvement with aneurysmal dilatations, no pulmonary artery involvement, associated with Hepatitis B
polyarteritis nodosa
Elderly , presenting with fever, anemia, headaches, temporal
Giant cell/temporal arteritis
Syndrome characterized by stiffness aching and pain in the muscles of the neck, shoulders, lower back, hips and thighs associated with giant cell arteritis
Ischemic optic neuropathy
Y= young female, systemic symptoms, arm claudication,
Takayasu’s arteritis (also known as Aortic Arch Syndrome or
Child with glomerulonephritis, palpable purpura over the buttocks and lower extremities, gastrointestinal symptoms, arthralgias, and history of recent respiratory infection
Henoch Schonlein Purpura (HSP)
Most commonly encountered vasculitis in clinical practice
Cutaneous vasculitis
So far the most effective therapy for the systemic vasculitides
Cyclophosphamide
Cutaneous vasculitis, arthriti, peripheral neuropathy,membranoproliferative glomerulonephritis, Hepatitis C, cold-, precipitated agglutinins or immunoglobulins
Cryglobulinemic vasculitis