Table 2.
Characteristics of the 37 patients with desmoid tumors under observation with serial MRI results available for analysis.
| All (n=37) | Hyperintense T2 score < 90% (n=17) | Hyperintense T2 score ≥ 90% (n=20) | p value | |
|---|---|---|---|---|
| Follow-up in months, median (range) | 28 (3.1–89) | 32 (4.2–79) | 23 (3.1–89) | 0.94† |
| Hyperintense T2 score,* median (range) | 90 (20–100) | 75 (20–80) | 95 (90–100) | <0.001† |
| Gender | 0.19‡ | |||
| Male | 6 (16%) | 1 (6%) | 5 (25%) | |
| Female | 31 (84%) | 16 (94%) | 15 (75%) | |
| Age | 0.15 | |||
| ≤25 | 8 (22%) | 2 (12%) | 6 (30%) | |
| ˃25, ≤45 | 19 (51%) | 11 (65%) | 8 (40%) | |
| ˃45 | 10 (27%) | 4 (24%) | 6 (30%) | |
| Baseline tumor size | 0.72‡ | |||
| ≤5 cm | 26 (70%) | 11 (65%) | 15 (75%) | |
| >5 cm | 11 (30%) | 6 (35%) | 5 (25%) | |
| Tumor type | 0.72‡ | |||
| Primary | 27 (73%) | 13 (76%) | 14 (70%) | |
| Recurrent | 10 (27%) | 4 (24%) | 6 (30%) | |
| Site | 0.099 | |||
| Abdominal wall | 15 (41%) | 10 (59%) | 5 (25%) | |
| Extremity | 14 (38%) | 4 (23%) | 10 (50%) | |
| Other§ | 8 (22%) | 3 (18%) | 5 (25%) |
*
Hyperintense T2 score is defined as percentage of tumor volume with hyperintense signal on T2-weighted images at baseline.
†
Calculated using Mann-Whitney U test or
‡
Fisher’s exact test; all other values represent results of χ2 analysis.
§
Includes chest wall lesions; this subset of the patient cohort included no patients with intra-abdominal lesions.