Isolated torsion of a fallopian tube in the third trimester of pregnancy is an uncommon event. Expedient diagnosis warrant a prompt management in view of better postoperative well-being for both mother and the fetus. Therefore, it can be challenging because the symptoms are relatively non specific. The ultrasound findings may be suggestive but the diagnosis is only made after the surgical exploration and histopathology.We present a case of isolated tubal torsion in a primigravida occurring in the third trimester managed by laparotomic salpingectomy.