A SPECULUM (100) HAVING AN ELONGATE RETRACTOR (101), AN ANNULAR RETAINING COLLAR (103), A SKIRT (102) AND AN ACTUATOR (105) CONFIGURED TO OPERATE THE RETAINING COLLAR (103) BETWEEN AN ENGAGED AND DISENGAGED POSITION. THE SPECULUM (100) IS DESIGNED TO BE SELF RETAINING ONCE INSERTED WITHIN AN ANIMAL OR HUMAN BODY CAVITY INVOLVING THE RADIAL EXTENSION OF THE RETAINING COLLAR (103) AND ABUTMENT WITH THE INTERNAL WALLS OF THE BODY CAVITY. EXAMINATION OF THE INTERNAL CAVITY WALLS IS POSSIBLE VIA EXPOSURE THROUGH AN ELONGATE WINDOW (115) FORMED IN THE RETRACTOR SIDE WALLS (118). FIG. 1