Giant cavernous malformation: a rare paediatric presentation

A boy in middle childhood with a history of early morning headaches presented to secondary care after being found to have bilateral papilloedema by his community optometrist. CT head showed a large right-sided heterogeneous calcific and haemorrhagic mass causing marked mass effect and midline shift. Preoperatively, the lesion was characterised on MRI as a haemorrhagic mass with a 'popcorn' appearance suggestive of a giant cavernous malformation measuring 6.6 × 3.7 × 5.7 cm³The patient made a successful recovery following stereotactic resection, and histopathological examination confirmed the radiological diagnosis of giant intracranial cavernous malformation.