**4.2 Diagnosis**

 McElin and Randal (2) established 4 criteria of tubal pregnancy near or at term without rupture of the tube: 1) that comp lete extirpation of the fetal sac and products of conception be achieved by salpingectomy 2) that there be no gross or microscopic evidence of tubal rupture, 3) that ciliated columner epithelium be demonstrated at a few points in the inner lining of the sac and 4) that smooth muscle be found in the sac wall at multiple sites and at considerable distances from normal, undilated tube.
