Endometrioma with color Doppler

Transvaginal ultrasound with color Doppler image of the left adnexa showing a benign endometrioma of the left ovary viewed with color Doppler imaging. No flow within the cyst can be demonstrated; however, blood flow is demonstrated within the wall of the cyst in the ovarian tissue itself (long arrow). Also identified within the left ovary is a small follicle (short arrow).