Right loin pain and sciatica.
MRI Sacral spine
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A peri-neural cyst at the level of S2 segment lateralizing to right with smooth scalloping of the related bony skeletonand mild effacement of the related right sided sacral nerve roots. It is measuring 1.5x 1.8 x 2.5 cm in dimensions.
Tarlov cysts are benign perineural cysts, typically occurring in the lower lumbar and sacral spine, usually seen at the existing foramina arising from exiting nerve roots. They are more common in females. These benign cysts are usually asymptomatic, however sometimes they can grow to a large size and cause pressure symptoms and bone remodeling as in this patient.