[Rheumatoid arthritis-mimics : When appearances are deceptive]

Area of Science:

• Rheumatology
• Internal Medicine
• Differential Diagnosis

Background:

• Rheumatoid arthritis is a common chronic inflammatory joint disease.
• Diagnosis can be challenging due to overlapping symptoms with other conditions.
• Extra-articular manifestations also contribute to diagnostic complexity.

Purpose of the Study:

• To highlight diseases that mimic rheumatoid arthritis.
• To emphasize the importance of accurate diagnosis in rheumatology.
• To guide clinicians in differentiating rheumatoid arthritis from look-alike conditions.

Main Methods:

• Review of conditions presenting with similar joint and organ manifestations.
• Focus on differential diagnoses for rheumatoid arthritis.
• Clinical examination, patient history, laboratory, and imaging findings are considered.

Main Results:

• Various metabolic, inflammatory (infective and non-infective), and tumorous diseases can imitate rheumatoid arthritis.
• Misdiagnosis can lead to severe, long-term consequences for patients.
• Atypical symptoms, disease course, or lack of treatment response warrant re-evaluation.

Conclusions:

• Accurate diagnosis of rheumatoid arthritis is critical.
• Consideration of differential diagnoses is essential, especially in atypical cases.
• Prompt re-evaluation is necessary when rheumatoid arthritis diagnosis is uncertain.