Monoarthritis - Differential Diagnosis Infection (Acute): - S. aureus (most common) - S. pneumonia - Salmonella (in asplenic patients) - Gonococcal infection Infection (Chronic) - Mycobacterial species - Lyme disease Fungal: - Histoplasmosis, - Coccidioidomycosis Crystal - Gout- usually LE, early in dz, neg birefringent - CPPD- Usually involves the knee, but can involve the b/l wrists, pos birefringent Inflammation: - Early Rheumatoid arthritis - Seronegative spondylarthritis - IBD, reactive arthritis, psoriatic arthritis - SLE - Sarcoid - Erosive OA Dr. Ann Marie Kumfer @AnnKumfer #Monoarthritis #Differential #Diagnosis #Causes #Schema
