Athey P A, Malone R S
J Ultrasound Med. 1987 Aug;6(8):431-6. doi: 10.7863/jum.1987.6.8.431.
The sonographic findings in 14 patients with ovarian fibromas/thecomas are described. A broad spectrum of sonographic features are presented and include hypoechoic mass with posterior shadowing (two cases); anechoic mass with good through transmission (with septations, two cases; without septations, four cases), echogenic mass with well-defined posterior wall (three cases); calcified mass (two cases); mixed echogenicity mass (one case). The pattern of a hypoechoic adnexal mass with acoustic shadowing should still suggest a fibroma/thecoma, but in most cases the appearance is nonspecific.
