Idiopathic arterial calcification in childhood

Area of Science:

• Pediatric Cardiology
• Radiology
• Pathology

Background:

• Idiopathic arterial calcification in infancy (IACI) is a rare, severe condition usually leading to early mortality.
• Diagnosis is often made post-mortem, making early identification challenging.

Observation:

• A 33-month-old child presented with hypertension and cardiac failure, unusual for IACI's typical infantile onset.
• Radiological imaging revealed widespread arterial calcification.
• Renal biopsy showed histological features consistent with IACI, despite normal calcium-phosphate levels and no other identifiable cause.

Findings:

• This case represents a unique, late-onset presentation of idiopathic arterial calcification in infancy.
• The calcium-phosphate axis was normal, ruling out common metabolic causes.
• Histological findings confirmed arterial calcification similar to typical infantile cases.

Implications:

• Early suspicion of IACI is crucial in children with unexplained cardiac or respiratory issues and arterial calcification.
• Imaging modalities like ultrasound and CT are sensitive for detecting arterial calcification.
• Recognizing late presentations can improve diagnostic timelines and management strategies for this rare disorder.