Presentation
Lump over sacrum.
Patient Data
Age: Middle aged
Gender: Male
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MRI demonstrates an oval sharply circumscribed mass in the subcutaneous tissues overlying the lower sacrum (S4 - S5). It has intermediate to low T1 signal, high signal on T2 and demonstrates no contrast enhancement. There is no evidence of spinal dysraphism.
Case Discussion
Features are consistent with an un-ruptured epidermal cysts (aka sebaceous cyst).