What does 'the conus medullaris is at the level of T12'' mean? Should I be concerned about a 3.1 x 4.4 cm mixed cystic and solid mass in rt adnexa?

End of spinal cord. The conus medullaris is the end of the spinal cord and is cone shaped and usually is found at T12, although occasionally at L1. I am assuming you mean the adnexa of the uterus and I would speak to your gynecologist regarding the finding on imaging of the mass.