Lipoblastoma is a rare, benign soft-tissue tumour derived from embryonic fa
t, Four patients with tumours located in the upper limb are reported, with
special reference to imaging techniques and histology, Radical surgical exc
ision is essential to prevent local recurrence and exact imaging techniques
are thus crucial. MRI appears to be a reliable preoperative investigation
and is the recommended radiological examination. In a child under 3 months
of age, images showing a predominantly fatty but inhomogeneous soft-tissue
mass are suggestive of lipoblastoma.