Related Experiment Video
Updated: Jul 29, 2025

Knee Arthrocentesis in Adults
Published on: February 25, 2022
Differentiating Between Undifferentiated Peripheral Spondyloarthritis From Septic Arthritis: A Case Report
1Communiy Care, Unnan City Hospital, Unnan, JPN.
Abstract:
Undifferentiated peripheral spondyloarthritis (SpA) and septic arthritis are two distinct differential diagnoses for patients with acute-onset monoarthritis. Effective history-taking and thorough physical examination are essential to differentiate between these two diseases. Precise follow-up can be critical for diagnosing undifferentiated peripheral SpA. Herein, we report our experience with two cases that required differentiation between undifferentiated peripheral SpA and septic arthritis. This case series shows the importance of ruling out septic arthritis promptly and considering the possibility of undifferentiated peripheral PsA based on clinical findings and imaging tests.
Related Concept Videos
Endocarditis II: Clinical Features of Infective Endocarditis
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Pericarditis II: Clinical Features and Diagnostic Tests
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
Acute Pyelonephritis II: Diagnostic Studies and Management
Rheumatic Heart Disease I: Introduction

