From a Suspicious Cystic Pineal Gland to Pineoblastoma in a Patient with Familial Unilateral Retinoblastoma.

Our patient was diagnosed with unilateral familial retinoblastoma at the age of thirteen days. Nineteen months later magnetic resonance (MR) images of the brain showed a suspicious cystic pineal gland. On a follow-up MR scan after another nine months this lesion was diagnosed as pineoblastoma. The tumor was resected and subsequently highdose chemotherapy was given, concluded with autologous stem-cell rescue. The patient was doing well at the last follow-up (over 5 years after resection). This case emphasizes that if there is any suspicious finding concerning the pineal gland on brain MR images in retinoblastoma patients, follow-up scans are highly recommended.