Cryoablation for Post Mastectomy Pain Syndrome

Inclusion Criteria: * Status post breast surgical intervention, to include mastectomy, partial mastectomy, lumpectomy, or reconstruction * Persistent pain in the distribution of the Intercostobrachial nerve: the residual breast, surgical bed, ipsilateral medial arm, and/or axilla following tissue healing (\> 1 month postoperative) * Positive response to local anesthetic nerve block, performed under imaging guidance. A positive response is defined as a ≥ 3 point change on a standard 11 point visual analog scale (VAS) * Ability and willingness to provide informed consent Exclusion Criteria: * Active infection * Underlying cervical segmentation or other cervical spinal anomaly that results in differential nerve root pressures * Immunosuppression * Uncorrectable coagulopathy * Currently pregnant, nursing or planning to become pregnant.