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Midterm I Study Chart - Radiology II Midterm 1 Study Chart...

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Radiology II Midterm 1 Study Chart – Page 1 of 6 Pathology Pathophysiology Associated Clinical Findings Radiographic Findings Osteoarthritis Increased pressure on cartilage Ligamentous laxity with age Delayed proprioception with age Bony enlargement Minimal inflammation AM stiffness < 30 min Crepitus, limitation, or pain with ROM Clear synovial fluid, <2,000 WBCs/mL Asymmetric joint space narrowing Ebunation Subchondral cyst Osteophytosis Intra-articular osseous bodies Hallux Limitus/Rigidus From osteoarthritis of the 1 st MTPJ Stage 1 – no pathological changes Stage 4 – aka hallux rigidus Stage 1 – may have radiographic evidence of biomechanical abnormalities (metatarsus primus elevatus) Stage 2 – periarticular spurring Stage 3 – joint deterioration Stage 4 - ankylosis Gout Overproducers (primary hyperuricemia) Secondary hyperuricemia (too much purine) Underexcreters (primary idiopathic, secondary – decreased renal function, increased tubular urate resorption due to diuretics, low dose salicylates) Acute intermittent – rapid onset of pain, erythema, warmth, edema, occurs in 1 st MPJ in 50% of patients Chronic tophaceous develops after 10 years of acute intermittent Marginal erosions with sclerotic rim “Overhanging” margin of bone Preservation of joint space until late in the disease Absence of osteopenia Increase in periarticular soft tissue volume; density Calcium pyrophosphate diydrate crystal deposition disease (CPPD) Hereditary, Idiopathic, associated with metabolic disease or trauma Hyperparathyroidism Hypophosphatemia Hypothyroidism Hypomagnesmia Mimic acute gout Differentiation from gout requires arthrocentesis Affects knees, wrists, MCJ’s, shoulders, elbows, and ankles Chondrocalcinosis- densities in articular cartilage Definite : CPPD crystals + chondrocalcinosis Probable : CPPD crystals or chondrocalcinosis Possible : acute or chronic arthritis without hyperuricemia
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Radiology II Midterm 1 Study Chart – Page 2 of 6 Pathology Pathophysiology Associated Clinical Findings Radiographic Findings Basic Calcium Phosphate Deposit in many soft tissue, role in the
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