Table 2.
Distribution among Procedural Locations of Soft-Tissue Metastases
| Outcome | Retroperitoneal | Superficial | Intraperitoneal | Bone | Head/Neck | Total |
|---|---|---|---|---|---|---|
| Patients | 47 | 41 | 21 | 21 | 12 | 126* |
| Procedures | 69 | 62 | 32 | 34 | 26 | 220* |
| Tumors | 75 | 76 | 39 | 34 | 27 | 251 |
| Mean Diameter (cm) | Volume (cm3) | Mean Diameter (cm) | Volume (cm3) | Mean Diameter (cm) | Volume (cm3) | Mean Diameter (cm) | Volume (cm3) | Mean Diameter (cm) | Volume (cm3) | Mean Diameter (cm) | Volume (cm3) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tumor | 3.6 | 48.9 | 3.0 | 34.2 | 2.6 | 57.2 | 4.6 | 82.6 | 2.7 | 24.8 | 3.3 | 47.3 |
| Ablation | 5.4 | 111.7 | 5.0 | 99.7 | 4.5 | 82.3 | 6.6 | 203.8 | 4.2 | 58.4 | 5.1 | 109.4 |
Retroperitoneal tumors included postnephrectomy recurrences, adrenal masses, and para-aortic/pericaval masses or adenopathy. Superficial tumor locations consisted of predominantly muscular, subcutaneous, or skin metastases, or all, within the extremities, chest, or abdominal wall, including desmoid tumors. Intraperitoneal tumors were within the abdominal cavity and included epicardial nodes interposed between the liver and heart. Tumors with bone location were limited metastatic deposits in non–weight-bearing locations with an epicenter in osseous structures. Head and neck foci were nodal recurrences of definitively treated (ie, surgery, chemotherapy, and radiation therapy) squamous-cell carcinoma or cancers residing in/around the mandible or clavicle.
The total number of patients is not reflected as a sum of each location because some patients underwent several procedures in different locations.