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Solitary cortical tubers
1Department of Radiology, Children's Hospital of Philadelphia, Pennsylvania 19104, USA.
AJNR. American Journal of Neuroradiology
|June 1, 1995
Summary
Two cases of solitary cortical tubers, unrelated to tuberous sclerosis, mimicked brain tumors in patients with seizures. Imaging revealed distinct frontal lobe lesions with unique characteristics on CT and MRI, confirmed as tubers post-biopsy.
Area of Science:
- Neurology
- Neuroimaging
- Pathology
Background:
- Solitary cortical tubers are rare focal cortical dysplasias.
- Tuberous sclerosis complex is the most common cause of cortical tubers.
- Distinguishing tubers from neoplasms is crucial for patient management.
Observation:
- Two patients presented with seizures and solitary frontal lobe lesions.
- CT scans showed hyperdense lesions.
- MRI revealed varied signal intensities and heterogeneous appearances, including a target sign in one case.
Findings:
- Histopathological examination confirmed the lesions as cortical tubers.
- These tubers were not associated with tuberous sclerosis.
- The imaging findings simulated neoplastic processes.
Implications:
- This highlights the importance of considering cortical tubers in the differential diagnosis of solitary brain lesions presenting with seizures.
- Accurate neuroimaging interpretation is key to avoiding misdiagnosis.
- Understanding tuber presentation aids in surgical planning and epilepsy management.