Article Figures & Data
Figures
- Fig 1.
51-year-old woman with lytic T10 lung adenocarcinoma metastasis. A, Intraprocedural axial prone CT image rotated for visual convenience demonstrates destructive lesion (black arrows) extending to the thecal sac with a cryoprobe within the mass. B, Intraprocedural TSE T2-weighted image in the axial plane demonstrates ice ball (white arrows) covering the lesion with preservation of the thecal sac (black arrows) and aorta (black arrow with white border), and C, sagittal plane demonstrates the ice ball (white arrows) with preservation of the neural foramina (black arrows).
- Fig 2.
50-year-old man with PET-avid C2–C3 neural foramen adenoid cystic carcinoma metastasis largely occult on CT. Intraprocedural axial fused PET/CT image demonstrates cryoprobe (white arrows) coursing immediately posterior to the styloid process within FDG-avid lesion at the end of the second freeze; the ice ball was not well visualized. The carotid artery was immediately anterolateral to the styloid process.
Tables
Patient # Age (yr) Sex Location Size (mm) Pathology 1 68 M L4 lamina and inferior facet 12 Presumed DLBCL; mixed chronic inflammation on pathology 2 17 M C7 pedicle 11 Osteoid osteoma 3 22 M L1 pedicle 15 Osteoblastoma 4 66 F T4 vertebral body/paraspinous 28 Leiomyosarcoma metastasis 5 50 M C2–C3 neural foramen 16 Adenoid cystic carcinoma metastasis 2 17 M C7 pedicle (repeat) 11 Osteoid osteoma 6 51 F T10 vertebral body 31 Lung adenocarcinoma metastasis 7 54 M T12 vertebral body 15 Atypical spindle cell tumor 3 23 M L1 pedicle (repeat) 15 Osteoblastoma Note:—DLBCL indicates diffuse large B-cell lymphoma.
Patient # Guidance Modality Monitoring Modality Procedure Goal Outcomes 1 MRI MRI Complete ablation No increase in size or posterior element destruction on CT 22 months postprocedure 2 CT MRI Pain relief Second procedure for less severe but residual pain 3 CT MRI Pain relief Second procedure for less severe but residual pain 4 CT CT Complete ablation Sustained resolution of pain 5 months postprocedure; no increase in lesion size on CT 5 months postprocedure 5 PET/CT PET/CT Complete ablation Lost to follow-up 2 CT MRI Complete ablation Sustained resolution of pain 7 months postprocedure without imaging at the time of writing 6 PET/CT MRI Complete ablation Continued pain postprocedure, with MRI 1 month postprocedure demonstrating likely tumor at the inferior endplate of T9 but complete ablation of the targeted T10 lesion; subsequent systemic chemotherapy and surgery 7 PET/CT MRI Complete ablation Sustained resolution of pain and no increase in lesion size 6 months postprocedure 3 CT MRI Complete ablation Sustained resolution of pain 4 months postprocedure without imaging at the time of writing
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