Atrial myxoma masquerading as Takayasu's arteritis

Area of Science:

• Cardiology
• Rheumatology
• Pathology

Background:

• Atrial myxomas are the most common primary cardiac tumors, typically benign.
• Vasculitis encompasses a group of disorders characterized by inflammation of blood vessels.
• Both conditions can present with constitutional symptoms and systemic manifestations.

Observation:

• A 48-year-old woman was initially diagnosed with vasculitis.
• Her symptoms were later attributed to an atrial myxoma.
• Diagnostic confusion arose from overlapping clinical presentations.

Findings:

• The case highlights similarities in symptoms that can lead to misdiagnosis between atrial myxoma and vasculitis.
• Delayed diagnosis of atrial myxoma can result from its misinterpretation as vasculitis.
• Specific diagnostic markers and imaging can differentiate between these conditions.

Implications:

• Misdiagnosis of atrial myxoma as vasculitis can lead to inappropriate immunosuppressive therapy.
• Prompt and accurate diagnosis is essential for effective management of atrial myxoma.
• Awareness of potential diagnostic overlap can improve patient outcomes in cardiac and autoimmune diseases.