Prevalence | 250 : 1000 women | 0.1 : 1000 women |
| usually multiple tumors | single |
Growth rate | slow | rapid |
Age | perimenopausal and postmenopausal | 50–65 years |
5-year survival rate | 100% | 10% |
The most common symptoms | heavy periods, abdominal pain, infertility | non-cyclic uterine bleeding |
US characteristics: | round, solid, clearly demarcated, hyperechoic | oval, solid, heterogeneous tumors with mixed echogenicity |
| tumor capsule, acoustic shadow, peripheral calcifications (usually postmenopausal) | no capsule, no acoustic shadow, no calcifications |
Vascularization of the tumor | weak, peripheral, MUSA 1 | strong, irregular, peripheral and central MUSA 3/4 |
Power Doppler | PI 0.7–0.9 | |
| RI 0.4–0.6 | RI 0.37 ± 0.03 |
| PSV 22.5 cm/sec. | PSV 71 cm/sec. |