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Biomedical subjects

Nuno L Antunes

Publications and source records attributed to Nuno L Antunes.

2 recordsLinked to original sources

Brain metastases in hepatoblastoma.

Brain metastases from hepatoblastomas are rare. We report a 2-year-old male who developed multiple hemorrhagic intracranial metastases. Previous reports indicate that brain metastases are an almost uniformly fatal complication of hepatoblastoma, although one long-term survivor has been described. In a child with known hepatoblastoma, the development of neurologic signs or symptoms should lead to the performance of a brain imaging study to exclude the possibility of intracranial extension of the disease.

Biopsy↗

Primary leptomeningeal primitive neuroectodermal tumor.

Leptomeningeal metastases are a common complication of medulloblastomas and other primitive neuroectodermal tumors (PNETs). Much rarer are PNETs apparently arising in the leptomeninges. An 8-year-old boy presented with headache and vomiting, due to neoplastic meningitis from primary neuroectodermal tumor without an identifying mass. After craniospinal irradiation and chemotherapy (carboplatin, vincristine, cyclophosphamide and lomustine) the boy was in remission for 14 months, then suffered several relapses despite various chemotherapy regimens. After the initial presentation of 3.5 years the boy began to suffer from prolonged refractory non-convulsive status epilepticus and later expired from progression of primary leptomeningeal PNET.

Antineoplastic Combined Chemotherapy Protocols↗