Papillary Tumor of the Pineal Region: Case Report and Literature Review
Arq. bras. neurocir; 37 (3), 2018
Publication year: 2018
Papillary tumor of the pineal region (PTPR) is a neuroectodermal tumor thought to
originate from cells of the subcommissural organ. Its oncologic properties are still
under investigation, as well as the most suitable therapeutic measures for this type of
neoplasm.We report the case of a 36-year-old woman with a 1-year history of headache
and intermittent diplopia. The magnetic resonance imaging (MRI) scan showed a
heterogeneously enhancing mass in the pineal region that caused an acute hydrocephalus,
and an emergency shunt derivation was necessary. One week later, the
patient was submitted to subtotal tumor resection, and remained asymptomatic in the
post-operative period. In the follow-up, the patient remained asymptomatic; in the
imaging control 3.5 years after the surgical resection, local recurrence was identified,
and the patient was submitted to a local radiation protocol. Our literature review
showed an early clinical onset due to intracranial hypertension signs. Definitive clinical
onset might be reached only through a histopathological examination. Gross total
resection followed by radiotherapy is the current standard of care. Local recurrence is
often observed, with rare dissemination to the cerebral spinal fluid. The natural history
of the PTPR remains unknown, as well as the best treatment strategy. Large case series
with longer follow-ups are necessary for further conclusions.
Diagnóstico Diferencial, Neoplasias Encefálicas/cirugía, Carcinoma Papilar/cirugía, Glándula Pineal/cirugía, Carcinoma Papilar/patología, Derivación Ventriculoperitoneal, Carcinoma Papilar/diagnóstico por imagen, Inmunohistoquímica, Neoplasias Encefálicas/diagnóstico por imagen, Glándula Pineal/diagnóstico por imagen, Neoplasias Encefálicas/patología, Glándula Pineal/patología