Yolk Sac Tumor of the Temporal Lobe: Case Report

Abstract Germ cell tumors of the central nervous system (CNS) are usually located along the midline. Yolk sac tumor is a rare germ cell tumor very uncommonly located outside the midline, and, in such cases, it can be mistaken with other primary tumors. We report a case of a 32-year-old male patient...

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Bibliographic Details
Published in:	Arquivos brasileiros de neurocirurgia Vol. 37; no. 3; pp. 247 - 251
Main Authors:	Machado, Ana de Almeida Matos Monteiro, Taipa, Ricardo Jorge Ferreira, Pires, Manuel Jorge Rocha Melo, Silva, Carla Maria Esteves, Gomes, Mário Augusto Cunha
Format:	Journal Article
Language:	English
Published:	Rio de Janeiro, Brazil Thieme Revinter Publicações Ltda 01-09-2018
Subjects:	Case Report \| Relato de Caso germ cell temporal lobe tumor yolk sac tumor yolk sac tumor temporal lobe células germinativas tumor saco vitelino germ cell lobo temporal
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Summary:	Abstract Germ cell tumors of the central nervous system (CNS) are usually located along the midline. Yolk sac tumor is a rare germ cell tumor very uncommonly located outside the midline, and, in such cases, it can be mistaken with other primary tumors. We report a case of a 32-year-old male patient who presented with a right temporal lobe tumor suggestive of a high grade glioma. He was submitted to a right temporal lobectomy with complete tumor removal. The histological exam revealed a germ cell tumor (later confirmed to be a yolk sac tumor). The search for a primary tumor outside of the CNS (including a positron emission tomography scan) was negative, making this a primary temporal lobe yolk sac tumor. The patient was submitted to chemotherapy and radiotherapy, but died 7 months after the surgery. Resumo Tumores de células germinativas geralmente se localizam ao longo da linha média. O tumor do saco vitelino é um raro tumor de células germinativas muito incomumente localizado fora da linha média e, nestes casos, pode ser confundido com outros tumores primários. Reportamos o caso de um homem de 32 anos de idade apresentando tumor no lobo temporal direito com suspeita de ser um glioma de alto grau. Foi submetido a uma lobotomia temporal direita com remoção completa do tumor. A histologia revelou um tumor de células germinativas (posteriormente confirmada como tumor do saco vitelino). A busca por tumor primário fora do SNC (incluindo um PETscan) foi negativa, confirmando-o um tumor primário do saco vitelino do lobo temporal. O doente foi a quimio e radioterapia, mas faleceu 7 meses após a cirurgia.
ISSN:	0103-5355 2359-5922
DOI:	10.1055/s-0035-1564829