The uterus is markedly enlarged by virtue of an encapsulated large fundal interstitial myometrial lesion -corresponding to the HSG soft tissue shadow- eliciting heterogeneous predominantly low T2 signal with areas of high signal seen within; it measures 12.7 x 10.3 x 16 cm along its maximum axial and craniocaudal dimensions respectively and seen reaching up to the L3/4 disc level.
Adjacent, much smaller myometrial interstitial lesions are seen related to the upper part of the lesion, eliciting a low T2 signal.
Courtesy of Baheya Hospital, Cairo.