Table 2.
Cardiac CT features of benign and malignant tumors
| Feature | Benign | Malignant |
|---|---|---|
| Size/number | Small (<5 cm), single lesion | Large (>5 cm), multiple lesions |
| Location | Left > > right | Right > > left |
| Morphology | Intracameral | Intramural |
| Attachment | Narrow stalk, pedunculated | Broad base |
| Enhancement | Absent to minimal | Modest to intense |
| Margin | Smooth, well-defined | Irregular, ill-defined |
| Invasion | None | Intra-/extracardiac infiltration |
| Metastasis | None | May be present |
| Pericardial effusion | None | May be present |
| Calcification | Rare (except for small foci in fibroma, myxoma, or teratoma) | Large foci in osteosarcoma |