eISSN: 1509-572x
ISSN: 1641-4640
Folia Neuropathologica
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vol. 51

Congenital glioblastoma coexisting with vascular developmental anomaly

Milena Laure-Kamionowska
Krystyna Szymanska
Monika Biekiesinska-Figatowska
Barbara Gierowska-Bogusz
Elżbieta Michalak
Teresa Klepacka

Folia Neuropathol 2013; 51 (4): 333-339
Online publish date: 2013/12/24
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Congenital central nervous tumours form a unique group of neoplasms. They are different from other tumour groups not only due to the onset time but also to their histopathology, anatomic location, and biologic behaviour. Congenital glioblastoma is one of the rarest types of congenital brain tumours and is uncommon in the prenatal period.

We report a rare case of congenital glioblastoma detected prenatally by ultrasound examination and magnetic resonance imaging at 26 gestational weeks. Based on MRI findings and consultation of a team of specialists, pregnancy was terminated at 28 weeks. The newborn presented hydrops foetal. The child died shortly after birth due to cardiorespiratory insufficiency. At autopsy a large tumour with a spongy-like appearance was found. The tumour involved nearly the whole right cerebral hemisphere and led to marked hydrocephalus. In the histological and immunohistochemical examination, the tumour presented features of glioblastoma. Neoplastic cells were immunopositive for GFAP, S-100 protein and negative for neuronal markers. Frequent mitoses and high MIB-1 labelling index were seen in the tumour areas. The coexistence of tumour and vascular developmental anomaly was stated. The conglomerates of numerous, distended, thin-walled foetal-like blood vessels were located beside the tumour tissue, which presented disturbance in differentiation and maturation of the vascular net. Such coexistence of malignant glioma with vascular developmental anomaly is unique.

congenital brain tumour, congenital glioblastoma, vascular developmental anomaly, persistent foetal-like vessels

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