Rheumatology/Musculoskeletal Flashcards
Low back pain with paraspinal tenderness + normal neuro exam
Mechanical
- Muscle strain
- Disc degeneration
Low back pain w/ radiation below knee, +straight leg raise test, neurologic deficits
Radiculopathy
(Herniated disc)
Low back pain w/ pseudoclaudication, relieved by leaning forward
Spinal stenosis
Low back pain worse w/ rest, improved with activity, with pain in the SI joints
Inflammatory
(spondyloarthropathies):
- Ankylosing spondylitis
- Psoriatic arthritis
- Reactive arthritis
Low back pain, worsens w/ activity, relieved with rest
Lumbar osteoarthritis
Low back pain >50yo, worse at night, not relieved with rest
Metastatic cancer
(spinal mets)
Low back pain + IVDU or recent infection, fever, focal spine tenderness
Infectious
- Osteomyelitis
- Discitis
Low back pain + midline tenderness
Vertebral fracture
Enthesitis
(inflammation/tenderness at tendon insertion sites)
Spondyloarthropathies:
- Ankylosing Spondylitis
- Psoriatic Arthritis
- Reactive Arthritis
Dry mouth, dry eyes, dysphagia, thrush, dental caries
Sjögren Syndrome
- Anti-Ro, Anti-La; SSA, SSB respectively
- Inflammation of exocrine salivary glands
- Decreased lacrimation
Cochlear dysfunction is a side effect of
- Cisplatin/Carboplatin
- Aminoglycosides
Optic neuritis is a side effect of
- Ethambutol (RIPE)
- Hydroxychloroquine
Thyroid dysfunction is a side effect of
- Amiodarone
- Lithium
Gout is a side effect of this drug
Cyclosporine
Patients with suspected secondary Raynaud’s Phenomenon (>40yo) should be tested for ____
Autoimmune disorders
(ANA, Rf, Antitopoisomerase)
Localized pain on anteromedial tibia just below the knee
Pes Anserinus Pain Syndrome
Woman with anterior knee pain worsened by activity or prolonged sitting
Patellofemoral Syndrome
Painful swelling directly over patella, usually following trauma
Prepatellar bursitis
Painful LE ulcer with purulent base and violaceous borders, seen in IBD, RA, or AML pts
Pyoderma Gangrenosum
Painful subcutaneous nodules on anterior LE
Erythema Nodosum
(ASO Abs, TB test, CXR)
- Benign
- Streptococcal infection
- Sarcoidosis
- TB
- Coccidiodomycosis
- IBD
- Behçet disease
Inhibits osteoclastic bone resorption
- Bisphosphonates
- Calcitonin
Tx of Paget disease of bone
Bisphosphonates
(inhibits osteoclasts and suppresses bone turnover)
Sensitive marker for SLE vs. Specific marker for SLE
ANA vs. Anti-dsDNA
Painless vesiculopustular skin lesions + Tenosynovitis + Polyarthralgias
DGI
(Disseminated Gonococcal Infection)
- +/- Fevers
Charcot joint
Neurogenic arthropathy 2/2 nerve damage from long-standing diabetes, B12 deficiency, peripheral nerve damage, or SCI
Young female w/ exertional arm pain + BP difference in R and L arm
Takayasu Arteritis
- Tx: Systemic glucocorticoids
Numbness, aching, or burning in the metatarsal heads of the third and fourth toes
Morton Neuroma
(mechanically-induced neuropathic degeneration of the interdigital nerves)
- Tx: Metatarsal support: Bar or padded shoe inserts; Surgery if refractory
Methotrexate Side-effects in RA Tx
- Macrocytic anemia
- Stomatitis
- Hepatotoxicity
- ILD
Isolated elevated alk phos, ASx
Paget disease of bone
(osteoclast dysfunction)
Suspicion of MM
Skeletal survey
Tx for Polymyalgia Rheumatica vs. GCA
Low-dose vs. High-dose Prednisone
(respectively)
Drug-induced Achilles tendinopathy/tendon rupture
Fluoroquinolone use
- Thrombotic event OR adverse pregnancy outcome + 2. Positive anticardiolipin, anti-beta2-glycoprotein-I, or lupus anticoagulant
Antiphospholipid Syndrome
Oligoarthritis + urethritis
- + fever = Gonococcal septic arthritis (abx)
- + mouth sores = Reactive arthritis (NSAIDs)
Trigger point tenderness in trapezius, lateral epicondyles, or greater trochanters
FM
(Fibromyalgia)
Acute-onset monoarticular arthritis
(12-24 hours)
Gout
Acute-onset monoarticular arthritis
(24-72 hours)
Septic arthritis
Bony spurs in cervical spine x-ray
Cervical spondylosis
(usually presents w/ osteophyte-induced radiculopathy)
Elevated urine hydroxyproline
Paget disease of bone
(marker for breakdown of collagen)
Gout PPX
- Alcohol cessation
- Weight loss
- Diet (low red meat, seafood, & added sugars)
Low back pain that increases w/ standing, walking, or lying on back
Vertebral Compression Fracture
(usually 2/2 osteoporosis)
>15% of dermatomyositis pts will develop
Malignancy
Anti-Jo-1
Dermatomyositis
Anti-Mi-2
Dermatomyositis
(against helicase)
>40yo w/ bone pain + HA + unilateral hearing loss
Paget disease of bone
(Osteoclast dysfunction)
- +Elevated alk phos
- +Increasing hat size
- +Bowing
Migratory non-deforming arthritis + chronic malabsorptive diarrhea + low-grade fever + PAS+ macrophages
Whipple’s disease
- Tropheryma whippelii (gram positive bacillus)
Nephrotic syndrome + hepatomegaly + S4 + recurrent pulmonary infections + palpable kidneys
Secondary amyloidosis (AA)
- Tx/PPX: Colchicine
Low back pain worse at night, improves with rest
Spinal osteomyelitis
Low back pain worse in the morning, improves with activity, + diarrhea/abd pain
IBD-associated arthritis
Acute inflammatory arthritis in setting of surgery or medical illness
Likely pseudogout (CPPD)
Recurrent oral and genital ulcers + uveitis + non-vesicular rash
Behçet Disease
(Turkish, Middle-Eastern, Asian descent)
- +venous/arterial thrombosis (small-medium vasculitis)
Primary Raynaud Phenomenon Tx
CCBs
(nifedipine, amlodipine) + stress or cold avoidance
Baker cyst is commonly concurrently seen with
OA
Female athlete triad of stress fractures
- Oligo-/amenorrhea
- Decreased caloric intake (anorexia/low BMI)
- Osteoporosis
Knee popping sensation followed by pain and rapid-onset hemarthrosis
ACL injury
(meniscal tear would not have rapid-onset swelling/hemarthrosis)
20-30yo w/ chronic lower back pain & stiffness that is relieved w/ activity and worse at night
Ankylosing spondylitis
(HLA-B27)
- +sacroiliitis on x-ray
- +Reduced chest expansion
- +Dactylitis (sausage digits)
- +Uveitis
- Dx: X-ray of sacroiliac joints
Older pt w/ cortical thickening of bone 2/2 osteoclast dysfunction
Paget disease of bone
(+elevated alk phos)
- Can lead to hearing loss (skull/temporal bone enlargement)
- Tx: Bisphosphonates
Acute knee pain + hypercalcemia
Pseudogout
(CPPD)
Evidence of cartilage calcification in setting of acute arthritis episode
CPPD
(Pseudogout: Calcium pyrophosphate dihydrate crystal arthritis)
- Also a complication of chronic hypercalcemia in setting of hyperparathyroidism
Achalasia causes ___ LES pressure; Systemic Sclerosis causes ___ LES pressure
Increased; Decreased
Progressive groin, thigh, or buttock pain on weight bearing in setting of chronic glucocorticoid use that is worsened by activity, relieved by rest, and has reduced ROM
Avascular Necrosis
(Osteonecrosis of the femoral head)
- Dx: MRI
- SLE is also a strong risk factor for AVN
Exertion-dependent claudication
Vascular claudication
(2/2 aortoiliac atherosclerosis)
Postural-dependent claudication
Neurogenic claudication
(2/2 nerve root compression from degenerative arthritis)
Claudication seen in obstructive atherosclerotic arterial disease (e.g. 2/2 aortoiliac atherosclerosis)
Vascular claudication
- Improves with rest
- Abnormal ABI
Claudication due to lumbar spinal stenosis
Neurogenic claudication
(2/2 nerve root compression from noninflammatory degenerative arthritis, such as spondylosis)
- Improves with position (shopping cart sign: pain lessens w/ spine flexion)
- Does not improve immediately with rest (~10 min)
Preexisting joint disorders (e.g. gout, pseudogout, osteoarthritis) increase the risk for
Secondary joint infection
(septic arthritis)
Pain on resisted supination of forum + weakness of wrist extension & 3rd digit
Radial tunnel syndrome
Pain w/ passive wrist flexion or resisted wrist extension
Lateral epicondylitis
(Tennis elbow)
- +tenderness at lateral epicondyle
Noninflammatory angiofibroblastic tendinitis at common wrist extensor origin from repetitive, forceful wrist extension
Lateral epicondylitis
(Tennis elbow)