Caseous Calcification of the Mitral Valve.

Area of Science:

• Cardiology
• Radiology
• Pathology

Background:

• Mitral annular calcification (MAC) is common, particularly in older adults.
• Caseous calcification of the mitral annulus (CCMA) is a rare, benign variant of MAC.
• CCMA can present as a mass-like lesion, raising concerns for cardiac tumors or abscesses.

Observation:

• CCMA exhibits characteristic imaging features on echocardiography, CT, and MRI.
• Histologically, CCMA shows amorphous, calcified material surrounded by inflammatory cells.
• Distinguishing CCMA from malignant or infectious lesions is crucial for appropriate patient management.

Findings:

• Multimodal imaging, including transthoracic echocardiography, transesophageal echocardiography, cardiac CT, and cardiac MRI, is essential for accurate diagnosis.
• Specific imaging findings suggestive of CCMA include a well-defined, non-enhancing mass with characteristic calcification patterns.
• Biopsy or surgical resection may be considered if the diagnosis remains uncertain after comprehensive imaging evaluation.

Implications:

• Accurate diagnosis of CCMA can prevent unnecessary invasive procedures, such as cardiac biopsies or surgical resections.
• Understanding the benign nature of CCMA avoids patient anxiety and reduces healthcare costs.
• Increased awareness among clinicians and radiologists regarding CCMA can improve diagnostic accuracy and patient outcomes.