Presentation
Lower back swelling for 10 years. No pain or discharge.
Patient Data
Three well-defined oval-shaped homogeneous hypoechoic masses lying next to each other, in the subcutaneous soft tissues overlying the sacrum. No calcifications or internal vascularity is seen in these lesions.
Well-defined multiloculated subcutaneous cystic lesions at the level of sacrum. These lesions are hypointense on T1, hyperintense on T2 and show mild diffusion restriction. No fat, calcifications, solid component or internal enhancement is seen in these lesions. No communication is seen with the spinal canal.
The lesion was excised under local anesthesia and was proven to be an epidermoid cyst on histopathology.
Case Discussion
Well-defined multiloculated subcutaneous cystic lesions at the level of sacrum; possible differentials are epidermal inclusion cyst or lymphatic malformation.