Child's Nervous System

, Volume 22, Issue 6, pp 577–585 | Cite as

Pinealoblastomas in children

  • Vicente Cuccia
  • Facundo Rodríguez
  • Fernando Palma
  • Graciela Zuccaro
Original Paper

Abstract

Introduction

Series of pinealoblastomas (PB) usually comprise small number of cases as this tumor type is extremely rare and occurs mainly in childhood (especially under 9 years of age). Frequently, PB are reported together with others pineal parenchymal tumors (PPT) or pineal tumors, making characterization far from adequate.

Materials and methods

Our series of CNS pediatric tumors comprises 1,350 cases of whom 16 are PPT, 12 PB, two pineocytomas (PC), and two mixed or transitional tumors (PC/PB). We have only analyzed the PB considering clinical features, treatment strategy, prognosis, recurrences, and mortality.

Results

PB represented 0.89%. Mean age was 7 years. Male–female ratio was 8/4. All patients complained of increased intracranial pressure, eight presented ocular symptoms, two cerebellar, and one endocrine disturbances. Patients underwent CT scans and/or MRI. All children had negative serum and CSF markers and only one case had positive tumor cells in the CSF on admission. Hydrocephalus (12/12) was treated with ventriculoperitoneal shunt in 11/12 and endoscopic third ventriculostomy (ETV) in 1/12. We performed 11 surgical procedures (seven by occipital transtentorial approach) and one endoscopic biopsy. Total removal was achieved in two, partial removal (50–90%) in seven, and biopsy in three patients or <50%. Adjuvant therapy included radiotherapy and chemotherapy. Recurrences appeared in 8/12 cases (mean time of recurrence=27.28 months). Six patients died (mean survival=29.55 months). Mean follow up for the six patients alive was 54 months and mean follow up for all 12 children was 38.7 months.

Conclusion

In our opinion, PB have a poor prognosis and are very aggressive, especially in small children. Survival rate at 1 and 5 years in the present series is 66.6% (8/12) and 50% (6/12), respectively. We propose an algorithm for the treatment of pediatric patients with PB.

Keywords

Pinealoblastoma Pineal tumor 

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Vicente Cuccia
    • 1
  • Facundo Rodríguez
    • 1
  • Fernando Palma
    • 1
  • Graciela Zuccaro
    • 1
  1. 1.Unit of Pediatric NeurosurgeryHospital Nacional de Pediatría, “Prof. Juan P. Garrahan”Capital FederalArgentina

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