Abstract: A speculum for accessing a body cavity or other opening may include an insertion portion having a wall with a barrel-like shape that forms a passageway extending from a proximal end to a distal end of the insertion portion. The wall of the insertion portion may have one or more openings, e.g., a slot extending along the longitudinal axis of the passageway. An obturator may be received in the passageway, and an obturator support may position the obturator so as to contact the wall of the insertion portion at an opening. An illumination portion having one or more light pipes extending from a housing may be used with the speculum, e.g., to provide light in the passageway. The illumination portion may be received in a cavity of the speculum and provide illumination through one or more windows in a wall of the cavity.