Idiopathic infantile arterial calcification: unusual features

Area of Science:

• Pediatric Cardiology
• Genetics
• Rare Diseases

Background:

• Idiopathic infantile arterial calcification (IIAC) is a rare, fatal genetic disorder characterized by widespread arterial calcification.
• The etiology of IIAC remains largely unknown, leading to significant challenges in diagnosis and management.
• Affected infants typically succumb to coronary arterial occlusion within the first few months of life.

Observation:

• This report details two new cases of IIAC, expanding the known clinical spectrum of the disease.
• One patient presented with unusual ear-lobe calcification, a previously unreported manifestation.
• The second patient exhibited an aortic aneurysm and coarctation of the aorta, highlighting cardiovascular complications beyond coronary arteries.

Findings:

• The study documents the clinical presentation and pathological findings in two infants diagnosed with IIAC.
• Varied calcification patterns were observed, including atypical locations such as the ear lobes and aorta.
• Therapeutic intervention with diphosphonate demonstrated apparent success in one of the reported cases.

Implications:

• These findings underscore the importance of recognizing the diverse clinical manifestations of IIAC.
• Early diagnosis and consideration of novel therapeutic strategies, such as diphosphonate treatment, may improve patient outcomes.
• Further research into the genetic and molecular underpinnings of IIAC is crucial for developing targeted therapies.