Male Infant\Intracranial Malignant Tumor\Surgery\Death

An 8-month-old boy was diagnosed with an intracranial malignant tumor. No written imaging report was available, so the description is based on a recalled review of the images: Imaging showed a lesion occupying most of the brain parenchymal space, with a clear tendency toward supratentorial origin. The massive space-occupying effect caused extreme dilation of the ventricular system, indicating that CSF circulation pathways (such as the interventricular foramina or cerebral aqueduct) were likely obstructed or compressed and deformed by the lesion. Because the lesion occupied such a large volume, it had close structural relationships with the cerebral hemispheres. Imaging signal characteristics (suggesting the nature of the lesion): On these sequences, the lesion showed mixed signals. Some areas appeared hypointense (possibly corresponding to cystic changes, necrosis, or CSF-like fluid), while other areas likely contained solid components. This mixed cystic-solid appearance is relatively common in intracranial tumors in infants and may be associated with choroid plexus papilloma, ependymoma, or other embryonal tumors. The child was hospitalized and underwent surgery. He died three months later.