Rheumatology Flashcards
(111 cards)
Features of prosthetic joint infection
Immunosuppressed + Elevated ESR + pain, warmth, effusion, fever
Imaging finding for prosthetic joint infection
Periprosthetic lucency on radiograph
Biopsy of microscopic polyangiitis (MPA)
- Nongranulomatous *necrotizing
* Pauci immune
Clinical features of microscopic polyangiitis
*kidney involvement + palpable purpura
Labs for microscopic polyangitis
Positive p-ANCA
labs for GPA + biopsy
c-ANCA + granulomatous
IgA vasculitis (HSP) biopsy
immune complexes identified on biopsy
Thromboangiitis obliterans clinical features
Inflammation of vessels in upper and lower limbs, leading to reduced pulses and gangrenous ulcers + smoker
Diffuse idiopathic skeletal hyperostosis on imaging
Bridging ossification of spinal ligaments
Workup after radiologic diagnosis of AS
Don’t test for HLA-B27 antigen, low specificity and diagnosis is clinical + radiographic
WBC count in septic arthritis
> 50K
Treatment of severe tophaceous gout not responding to febuxostat
Pegloticase
Workup of reactive arthritis
Chlamydia urine NAAT (most common agent causing urethritis)
Ankylosing spondylitis diagnosis
- clinical + radiographic (inflammatory back pain + sacroillitis on imaging)
- Not HLA-B27
Gastric antral vascular ectasia (GAVE) clinical features
- proliferation of blood vessels typically in antrum of stomach
- looks like watermelon stripes on endoscopy
What is a dielafoy lesion?
Submucosal arterioles that protrude through the mucosa and cause hemorrhage
Treatment of acute gout refractory to steroids
Il-1 inhibitors (Anakinra or canakinumab)
Antisynthetase syndrome clinical features
ILD + Dermatomyositis or polymyositis
Raynaud’s
Inflammatory arthritis
Positive antibody in anti-synthetase syndrome
anti-Jo-1 (an anti synthetase antibody)
Cause of GI involvement in patients with systemic sclerosis
Small intestinal bacterial overgrowth (SIBO0
Felty syndrome clinical features
long standing RA + neutropenia + splenomegaly
Lyme arthritis clinical features
Large effusion + stiffness + minimal pain
IgG4-related disease clinical features
- Organomegaly
- diffuse fibrosis
- Multiorgan failure
Germ cell tumor presentation
- Bulky RP or mediastinal lymphadenopathy
- testicular mass may not always be present