pediatric hepatocellular carcinoma (MONDO_0018055, a Monarch Disease Ontology id) (pediatric HCC) is a rare, aggressive, malignant hepatic tumor that develops mainly in children over 10 years of age. Also known as: Paediatric carcinoma of the liver cell, Pediatric carcinoma of the liver cell, childhood carcinoma of the liver cell, childhood hepatocellular carcinoma, childhood-onset HCC, childhood-onset hepatocellular carcinoma, paediatric HCC, pediatric HCC.