TY - JOUR
T1 - Primitive neuroectodermal tumor with peritoneal metastasis through a ventriculoperitoneal shunt
AU - Yamamoto, Yoshihiro
AU - Kunishio, Katsuzo
AU - Suga, Masakazu
AU - Sunami, Norio
AU - Yamamoto, Yuji
AU - Sonobe, Hiroshi
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1989
Y1 - 1989
N2 - A 13-month-old boy admitted with lethargy and hydrocephalus was found to have a right thalamic mass. Ventricular drainage was instituted, and the tumor mass was reduced by partial resection and local irradiation. A ventriculoperitoneal shunt was then placed. However, the tumor recurred 16 months later, with extensive ventricular seeding and peritoneal metastasis through the shunt tube. The child died 22 months after onset. Histological study of surgical specimens of the primary tumor and autopsy specimens of the brain and peritoneal metastatic tumors revealed poorly differentiated, small, round cells with numerous mitotic figures. In addition, autopsy specimens of the brain tumor contained areas of ependymal, oligodendroblastic, and spongioblastic differentiation. On immunohistochemical study, the tumor cells of each specimen were positive for antineuron specific enolase and anti-neurofilament antibodies, but negative for anti-glial fibrillary acidic protein antibodies. Electron microscopy revealed some zonulae adherens. These findings strongly suggest that the tumor originated from primitive multipotential cells capable of differentiating into ependymal, glial, and neuronal lines.
AB - A 13-month-old boy admitted with lethargy and hydrocephalus was found to have a right thalamic mass. Ventricular drainage was instituted, and the tumor mass was reduced by partial resection and local irradiation. A ventriculoperitoneal shunt was then placed. However, the tumor recurred 16 months later, with extensive ventricular seeding and peritoneal metastasis through the shunt tube. The child died 22 months after onset. Histological study of surgical specimens of the primary tumor and autopsy specimens of the brain and peritoneal metastatic tumors revealed poorly differentiated, small, round cells with numerous mitotic figures. In addition, autopsy specimens of the brain tumor contained areas of ependymal, oligodendroblastic, and spongioblastic differentiation. On immunohistochemical study, the tumor cells of each specimen were positive for antineuron specific enolase and anti-neurofilament antibodies, but negative for anti-glial fibrillary acidic protein antibodies. Electron microscopy revealed some zonulae adherens. These findings strongly suggest that the tumor originated from primitive multipotential cells capable of differentiating into ependymal, glial, and neuronal lines.
KW - metastasis
KW - primitive neuroectodermal tumor
KW - recurrence
KW - ventriculoperitoneal shunt
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U2 - 10.2176/nmc.29.1137
DO - 10.2176/nmc.29.1137
M3 - Article
C2 - 2484194
AN - SCOPUS:0024796395
VL - 29
SP - 1137
EP - 1143
JO - Neurologia Medico-Chirurgica
JF - Neurologia Medico-Chirurgica
SN - 0470-8105
IS - 12
ER -