Abstract
Purpose
To better define outcome and prognostic factors in primary pineal tumors.
Materials and methods
Thirty-five consecutive patients from seven academic centers of the Rare Cancer Network diagnosed between 1988 and 2006 were included. Median age was 36 years. Surgical resection consisted of biopsy in 12 cases and resection in 21 (2 cases with unknown resection). All patients underwent radiotherapy and 12 patients received also chemotherapy.
Results
Histological subtypes were pineoblastoma (PNB) in 21 patients, pineocytoma (PC) in 8 patients and pineocytoma with intermediate differentiation in 6 patients. Six patients with PNB had evidence of spinal seeding. Fifteen patients relapsed (14 PNB and 1 PC) with PNB cases at higher risk (p = 0.031). Median survival time was not reached. Median disease-free survival was 82 months (CI 50 % 28–275). In univariate analysis, age younger than 36 years was an unfavorable prognostic factor (p = 0.003). Patients with metastases at diagnosis had poorer survival (p = 0.048). Late side effects related to radiotherapy were dementia, leukoencephalopathy or memory loss in seven cases, occipital ischemia in one, and grade 3 seizures in two cases. Side effects related to chemotherapy were grade 3–4 leucopenia in five cases, grade 4 thrombocytopenia in three cases, grade 2 anemia in two cases, grade 4 pancytopenia in one case, grade 4 vomiting in one case and renal failure in one case.
Conclusions
Age and dissemination at diagnosis influenced survival in our series. The prevalence of chronic toxicity suggests that new adjuvant strategies are advisable.
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We thank Mrs. Marta Jordan for her administrative support of the article.
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The authors declare that they have no conflict of interest relating to the publication of this article.
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Villà, S., Miller, R.C., Krengli, M. et al. Primary pineal tumors: outcome and prognostic factors—a study from the Rare Cancer Network (RCN). Clin Transl Oncol 14, 827–834 (2012). https://doi.org/10.1007/s12094-012-0869-0
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DOI: https://doi.org/10.1007/s12094-012-0869-0