<prompt> In cases of recurrent aboions, most common uterine malformation seen is?Mullerian fusion defectsUterine syncytiumUnicornuate uterusUterine agenesis  <response>: Mullerian fusion defects REF: Williams 22 ed chapter 9 Abnormal Mullerian duct formation or fusion defects may develop spontaneously or may follow in utero exposure to diethylstilbestrol is the commonest cause of uterine factors leading to recurrent spontaneous aboions. 