Pediatric Hepatic Cystic Lesions: Differential Diagnosis and Multimodality Imaging Approach

Area of Science:

• Pediatric Radiology
• Hepatology
• Medical Imaging

Background:

• Pediatric hepatic cystic lesions present a broad differential diagnosis.
• Imaging features like location, number, size, and composition aid diagnosis.
• Simple hepatic cysts are most common, but other causes exist.

Purpose of the Study:

• To review the differential diagnosis of pediatric hepatic cystic lesions.
• To highlight key imaging findings and clinical features for accurate diagnosis.
• To guide appropriate clinical management based on imaging.

Main Methods:

• Review of imaging findings in pediatric hepatic cystic lesions.
• Correlation of imaging features with clinical presentation.
• Discussion of various etiologies including developmental, infectious, neoplastic, and iatrogenic causes.

Main Results:

• Simple hepatic cysts are common.
• Ciliated foregut cysts are in segment IVa.
• Multiple cysts suggest fibropolycystic liver disease.
• Choledochal cysts communicate with the biliary tree.
• Mesenchymal hamartoma can evolve into sarcoma.
• Abscesses, hematomas, and bilomas can mimic cysts.
• Infusate extravasation is a concern with umbilical vein catheters.

Conclusions:

• Accurate diagnosis of pediatric hepatic cystic lesions relies on understanding imaging findings and clinical context.
• Differentiating between various cystic lesions is crucial for appropriate management.
• Familiarity with the spectrum of pediatric liver cysts improves patient outcomes.