Causes of Knee Effusions - Differential Diagnosis
• Infection (Septic Arthritis): Staphylococcal (40%), Streptococci (28%), Gm- bacilli (19%), Mycobacterium (8%), Gm- cocci (3%), Gram + bacilli (1%), Anaerobes (1 %)
• Trauma: Ligamentous injuries, Meniscal injury, Intra-articulation fracture, Patellar dislocation
• Malignancy: Hematologic, Leukemia
• Solid tumors: Ewing's sarcoma, Giant cell tumor, Osteosarcoma, Eosinophils granuloma, Synovial sarcoma, Chondrobalstoma
• Benign Tumor: Aneurysmal bone cyst, Osterochondroma
• Hematologic: Hemarthrosis, Hemophilia, Synovioma, Oral anticoagulant therapy, Sickle Cell disease
• Inflammation: Gout, Pseudo gout, Osteoarthritis, Overuse syndrome
• Spondyloarthritis: Reactive arthritis, Inflammatory bowel disease, Rheumatoid arthritis, Juvenile RA/ldiopathic arthritis, SLE, Behcet Disease
• Post-Infectious: Seronegative Reactive Syndrome, Acute rheumatic fever, Poststreptoccal reactive arthritis
Dr. Ravi Singh @rav7ks
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