Focal Nodular Hyperplasia: An Unusual Liver Mass in a Paediatric Patient

ELHJ Teo, HK Ang, NT Ong, APA Tan Kendrick
Correspondence: Dr E L H J Teo

ABSTRACT
We report an unusual case of focal nodular hyperplasia (FNH) occurring in a 19-month-old female without a typical central fibrous scar. Ultrasound demonstrated a solid, hypoechoic, highly vascular mass situated in the left lobe of the liver. Computed tomography showed a solid mass with no evidence of a central fibrous scar. A hepatic angiogram demonstrated enlarged right and left hepatic arteries supplying the vascular tumour, with early venous drainage into the inferior vena cava; a feature which has not been previously described. Surgical resection was carried out and a solid, nodular tumour measuring 9 x 4 x 4 cm was removed. The diagnosis of FNH was made histologically. The characteristic imaging findings of FNH will be discussed and a review of the literature of FNH in children will be presented.

Keywords: Focal nodular hyperplasia, benign, liver tumour, paediatric patients
Singapore Med J 2000; 41(7): 352-355