Peripheral Spondyloarthritis Presenting with Fever and Severe Systemic Inflammatory Response Mimicking Infection: A Case Series and Literature Review

Table 1

Summary of patients’ presentation, laboratory results, and treatment.

Cases	Sex	Age (y)	Nationality	Fever	Presentation	Synovial fluid cell count (µl)	Laboratory results	HLA B27	Response to DMARDs/NSAIDs
1	Male	39	Bangladeshi	Yes	Three days of acute left knee arthritis	65,000	CRP = 141	Present	Methotrexate/naproxen prn
							ESR = 92
							WBC = 15.3
							Plat = 418
2	Male	48	Palestinian	Yes	One week of acute oligoarthritis	875	CRP = 275	Absent	SSZ + infliximab
							ESR = 44
							WBC = 14.6
							Plat = 539
3	Male	28	Bangladeshi	Yes	Two weeks of acute oligoarthritis	12,188	CRP = 278	Present	Methotrexate adalimumab
							ESR = 42
							WBC = 23
							Plat = 486
4	Male	23	Nepalese	Yes	Ten days of acute left knee arthritis	55,375	CRP = 195	Present	Sulfasalazine
							WBC = 15
							Plat = 338

WBC = white blood cell, CRP = C-reactive protein, ESR = erythrocyte sedimentation rate, plat = platelets, prn = pro re nata is a Latin term that means as needed, MTX = methotrexate, and SSZ = sulfasalazin.