Dermoid cyst MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [3]

Overview

MRI is helpful in the diagnosis of dermoid cyst. Findings on MRI suggestive of dermoid cyst include:
- Hypointense (due to the water content) or hyperintense (due to the presence of fatty secretions of sebaceous glands) T1 signal, hyperintense T2 signal, and no enhancement or mild rim enhancement on contrast T1 signal.


MRI component	Dermoid cyst

T1	Hypointense (due to the water content); or Hyperintense (due to the presence of fatty secretions of sebaceous glands)
T2	Hyperintense
T1 with contrast	No enhancement or mild rim enhancement

Sagittal T1-weighted image shows a hypointense lesion with a hyperintense signal area at the lower end (arrowhead).^[1]
Sagittal T2-weighted axial image showing a homogenously hyperintense lesion..^[1]
Intracranial dermoid cyst, sagittal view^[2]
Intracranial dermoid cyst, axial view^[2]