Intracranial epidermoid cyst diagnosis
Diagnostic procedures evolved from angiography and ventriculography to non-invasive computed tomography and MRI 1).
CT
The typical imaging appearance of epidermoid cyst is homogenous non-enhanced hypodense on CT. The CT density of the epidermoid cyst is usually between −2 and +10 Hounsfield units (HU) 2) 3).
MRI
1)
deSouza CE, deSouza R, da Costa S, Sperling N, Yoon TH, Abdelhamid MM, Sharma
RR, Goel A. Cerebellopontine angle epidermoid cysts: a report on 30 cases. J
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Central PMCID: PMC1031839.
2)
Nguyen JB, Ahktar N, Delgado PN, Lowe LH. Magnetic resonance imaging and proton magnetic resonance spectroscopy of intracranial epidermoid tumors. Crit Rev Comput Tomogr. 2004;45(5–6):389–427. doi: 10.3109/10408370490903543.
3)
Sirin S, Gonul E, Kahraman S, Timurkaynak E. Imaging of posterior fossa epidermoid tumors. Clin Neurol Neurosurg. 2005;107(6):461–7. doi: 10.1016/j.clineuro.2004.11.007.