This procedure is offered primarily as a means of diagnosing the condition of the glands of the cervix.
The cervix may be transilluminated by a light applied to the vaginal surface, or by a small light introduced within the cervical canal. A hooded light must be used when applied to the outer surface of the cervix, so that all the rays are directed into the cervical tissue. A Carroll antrum transilluminator, which has the light at right angles to a straight handle, serves well for this purpose. The position of the light and its intensity must be varied until just the proper illumination is secured. A light from a urethroscope may be used for the inside of the cervix.
The first cervix I examined this way had a definite cyst visible to ordinary examination. Transillumination revealed the cyst as an area more translucent than the rest of the cervix, and