1. F-18 FDG PET scan of a metastatic pineoblastoma
- Author
-
Jehad Al-Watban, Maher Hassounah, Siema M. Bakheet, Sven Larsson, Mohamed Homsi, and John Powe
- Subjects
Male ,endocrine system ,Pathology ,medicine.medical_specialty ,Fluorine Radioisotopes ,Malignancy ,Pineal Gland ,Metastasis ,Fluorodeoxyglucose F18 ,Glioma ,Biopsy ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Pineoblastoma ,medicine.diagnostic_test ,business.industry ,Brain Neoplasms ,Leptomeninges ,General Medicine ,Spinal cord ,medicine.disease ,Magnetic Resonance Imaging ,medicine.anatomical_structure ,Child, Preschool ,Pinealoma ,Radiopharmaceuticals ,Nuclear medicine ,business ,Tomography, X-Ray Computed ,Tomography, Emission-Computed - Abstract
A 5-year-old boy had obstructive hydrocephalus secondary to a partially calcified pineal mass visualized by brain CT. An MRI showed homogenous enhancement of a pineal gland tumor, a separate suprasellar mass, and the leptomeninges of the brain stem and cervical spinal cord. F-18 FDG PET scan showed increased glucose uptake in all lesions. Biopsy of this pineal tumor indicated pineoblastoma. The CT and MRI features of pineoblastoma are nonspecific and cannot distinguish the various types of pineal parenchymal tumors. F-18 FDG PET scans could be helpful in classifying some difficult cases, because higher levels of F-18 FDG uptake would be expected in the malignant types because of increased glucose metabolism. PET scans could also be useful in determining the degree of malignancy in those tumors with intermediate differentiation.
- Published
- 1999