hi im 26 years old im diagnost with uterus bleeding and very bad menstrul pain during the 7 day of period . i went to the gy and she said that i have fibroid but after i did the MRI . the result was that there is an abnormal rounded structure within the uterine cavity .and it was measured 4by2.3by3.8 cm also its says that this sbnormality presents as a heterogenous mass on the t2 weighted technique and doesnt have the imaging caracteristics of a fibroid . please tell me what is that could be ??