Ultrasonography of rapidly growing uterine leiomyomata associated with anovulatory cycles.

Three cases of rapidly growing leiomyomata uteri in young oligomenorrheic women are presented. The atypical ultrasonic and histologic findings are discussed. A spectrum of atypical ultrasonic findings including a high degree of transonicity and multiple areas of cystic degeneration is described. Histologic examination correlates well in explaining the sonographic characteristics. In addition, a possible relationship between the presumably anovulatory cycles present in these women and their rapidly growing leiomyomata is suggested.