Table 1.
Retroperitoneal Sarcoma Patient Characteristics
| Variable (n) | Number % | Percent |
|---|---|---|
| Sex | ||
| Male | 63 | 48.1 |
| Female | 68 | 51.9 |
|
| ||
| Age at Diagnosis | ||
| < 60 | 66 | 50.4 |
| ≥ 60 | 65 | 49.6 |
|
| ||
| Year of Diagnosis | ||
| 1994 – 1999 | 33 | 25.2 |
| 2000 – 2005 | 52 | 39.7 |
| 2006 – 2010 | 46 | 35.1 |
|
| ||
| Surgical Resection | ||
| No | 16 | 12.2 |
| Yes | 115 | 87.8 |
|
| ||
| Radiation Therapy | ||
| No | 100 | 76.3 |
| Yes | 31 | 23.7 |
|
| ||
| Chemotherapy | ||
| No | 94 | 71.8 |
| Yes | 37 | 28.2 |
|
| ||
| Metastasis at Presentation | ||
| No | 108 | 82.4 |
| Yes | 23 | 17.6 |
|
| ||
| Mets and Surgery | ||
| No | 9 | 39.1 |
| Yes | 14 | 60.9 |
|
| ||
| Metastatectomy* | ||
| No | 7 | 50.0 |
| Yes | 7 | 50.0 |
|
| ||
| Surgical Resection Margins | ||
| R0 | 36 | 31.3 |
| R1 | 56 | 48.7 |
| R2 | 18 | 15.7 |
| Unknown | 5 | 4.30 |
|
| ||
| Tumor size | ||
| < 5 cm | 9 | 6.87 |
| 5 – 15 cm | 62 | 47.3 |
| > 15 cm | 60 | 45.8 |
|
| ||
| Grade | ||
| Low | 23 | 17.6 |
| Moderate | 27 | 20.6 |
| High | 69 | 52.7 |
| Unknown | 12 | 9.16 |
|
| ||
| Number of Organs Resected | ||
| 0 | 21 | 18.3 |
| 1–2 | 59 | 51.3 |
| 3–4 | 27 | 23.5 |
| ≥ 5 | 8 | 6.96 |
|
| ||
| Organ Resected | ||
| IVC | 18 | |
| Kidney | 51 | |
| Colon | 25 | |
| Pancreas | 15 | |
| Whipple | 8 | |
| Diaphragm | 5 | |
| Spleen | 11 | |
|
| ||
| Histology | ||
| WDLPS | 18 | 13.5 |
| DDLPS | 32 | 24.4 |
| Leiomyosarcoma | 52 | 39.7 |
| MPNST | 5 | 3.80 |
| Angiosarcoma | 4 | 3.00 |
| Synovial Cell Sarcoma | 4 | 3.00 |
| MSFT | 3 | 2.30 |
| Myxoid liposarcoma | 1 | 0.75 |
| Rhabdomyosarcoma | 1 | 0.75 |
| Fibrosarcoma | 1 | 0.75 |
| Sarcoma NOS | 10 | 7.6 |
*
Metastatectomy performed in patients with metastases who underwent surgery
WDLPS – Well Differentiated Liposarcoma; DDLPS – DeDifferentiated Liposarcoma MPNST – Malignant peripheral nerve sheath tumor; MSFT – Malignant Solitary Fibrous Tumor