Table 1.
Imaging characteristics of primary alveolar soft part sarcoma
| Serial number | Site | Size (cm) | Margin | Outline | Flow void/feeder vessels | Contrast enhancement | SI on T1W | SI on T2W |
|---|---|---|---|---|---|---|---|---|
| 1 | Retro-ocular | 4.6 | Relatively well circumscribed | Lobulated | + | Homogeneous | HI | HI |
| 2 | Thigh | 10.0 | Ill defined | Irregular | + | Heterogeneous peripheral enhancement | – | – |
| 3 | Thigh | 9.5 | Well circumscribed | Mildly undulating | + | Homogeneous | HI | HI |
| 4 | Gluteal | 11.5 | Relatively well circumscribed | Lobulated | + | Heterogeneous peripheral enhancement | – | – |
| 5 | Thigh | 15.5 | Ill defined | Irregular | + | Heterogeneous peripheral enhancement | HI | HI |
HI, hyperintense; SI, signal intensity; T1W, T1 weighted imaging; T2W, T2 weighted imaging.