Multifocal PIK3CA Related Congenital Hemangioma

Area of Science:

• Medical Genetics
• Pediatric Pathology
• Dermatology

Background:

• Multifocal congenital hemangiomas are rare vascular tumors in newborns.
• Accurate diagnosis is crucial for appropriate management and to differentiate from other vascular anomalies.
• Genetic factors, such as PIK3CA variants, are increasingly recognized in the pathogenesis of vascular lesions.

Observation:

• A newborn presented with multifocal congenital hemangiomas.
• The infant harbored an activating pathogenic variant in the PIK3CA gene.
• Diagnostic workup involved clinical assessment, histology, and radiographic imaging.

Findings:

• The case illustrates the diagnostic complexities associated with multifocal congenital hemangiomas in neonates.
• Genomic analysis identified a PIK3CA pathogenic variant, suggesting a molecular basis for the condition.
• Correlation of clinical, histologic, radiographic, and genomic data was essential for precise categorization.

Implications:

• This case highlights the importance of a multidisciplinary approach in diagnosing and managing rare neonatal vascular lesions.
• Understanding the genetic underpinnings, like PIK3CA variants, can inform targeted therapeutic strategies.
• Accurate classification of these lesions is critical for predicting clinical course and guiding treatment decisions.