A United States Army Medical Department continuing Education program, the 24 th annual Armed Forces seminar on obstetrics and gynecology, clinical management of lower generative tract pre malignant pathology with John JM MD, Professor OBGYN Department, University of Pennsylvania at Philadelphia. The previous discussions have brought into focus in a very fine way, the present status of thinking about the early lesions, particularly those that apply to the cervix. And I would like to cover some points again, that has been or have been brought out by these speakers. First, as Doctor Roberts showed the important aspect with regard to scientology and its clinical application in the management of a patient is communication. And unless the clinician has an ongoing line of communication with his cy pathologist, I think he can be misled into doing things that may not be in the best interest of the patient. Secondly, with regard to the utilization of colposcopy as doctor O has demonstrated, and as Dr Fenoglio has demonstrated that the utilization of colposcopy as a an additive method of clinical estimation of what is going on in a particular patient's cervix is a very, very important feature in a step that can be now used in the management of patients with premalignant uh cervical pathology. First of all, it is important that when a patient has an abnormal cytologic smear from the cervix and endocervix, I would like to stress again that a single sample of material taken from the cervix should be considered inadequate. Those studies show that if you take this sample from the endocervix, either with aspiration or by a moisten cotton tip applicator. And I might add that our cytologist does not like the moistened cotton tip applicator. And I think most cytologists do not, but the aspiration technique appears to be probably the best method of obtaining a good sample that we should be in a position to pick up most of the abnormalities present in a particular patient, the vaginal pool as a method of screening, I think has been largely discarded. And we may use this in our discussion. Our first step is usually to have the patient return for a repeat smear examination. And I think this is this gives us some idea as to whether perhaps in the first sampling, we may have missed a lesion that was more extensive by our cytology. And secondly, we may find that occasionally the second sampling will show no abnormality whatsoever suggesting perhaps that there may have been a mix up in the slides or that something else may have happened in between that may have altered the pathologic process. The next step is to have the patient evaluated colposcopic if you have a colposcopy available to do this. And again, I would like to stress the fact that a single uh course, the evaluation of a few patients in your practice is usually not sufficient to make you be able to be comfortable to rely on. Using this as the only method of following a patient. I think in the studies that have been done uh primarily by Doctor Richard, by Kaufman Townsend and others, where patients have been observed colposcopic where they were a part of a well designed program and where the patients were liable, such things can be done and have been done to the great advantage of patients who are going to come after them in order to be able to pick out those patients that perhaps can be treated by a lesser method of treatment than we have used in the past. I think that the reliability of the patient is a very important aspect of what we're talking about today. If you're dealing with a typical patient who has a ac in lesion, if you're dealing with a patient who is in the lower socioeconomic group, who has begun her sexual life early, who may already have been divorced and remarried a couple of times or has had several Children. This type of patient not only is epidemiologically at risk for the development of these lesions. She also is probably the kind of individual who is going to be somewhat unreliable in follow up. And I think a part of your total assessment of the patient has got to include whether or not this patient is going to come back and have done to her what you plan to do and that she understands thoroughly what you are trying to accomplish uh with the colposcopic examination. Again, utilizing the concepts that have been presented today, it may be possible for the colposcopy to identify and even remove the entire lesion provided it is within the transformation zone and such can be accomplished. On the other hand, if the lesion is not totally visible or if there are extensions that go up into the endocervix, where we begin to get into the complicated anatomy of the endocervix where it grooves and clefts and other indentations are available for this epithet to become hidden somewhat. It may be more difficult using colposcopy in order to determine what is going on in those areas. However, where directed localized biopsy can be carried out either utilizing this method of approach or in the hands of experienced colposcopy, utilizing a biopsy of the area that appears to have the most advanced lesion followed by local treatment to the cervix, either in the form of cryosurgery or in the form of cauterization may be all that is necessary to accomplish the destruction of the abnormal epithelium, allowing normal meta plastic epithelium to take its place. Huh last year at this meeting, Dr Upton, formerly of Portsmouth presented the use of the laser beam in which directed very, very minutely measured approaches to epithelial neoplasia were applied. I think this is still in a very experimental area. But there may be a possibility that utilizing such instrumentation and techniques may be helpful in localizing very strictly the lesion and not to have to apply freezing or burning to large areas of the cervix. This would reduce the possibility of stenosis of the cervix that sometimes occurs even after simple cauterization. Uh And uh I think improve the possibility of pregnancy and those girls who are interested in that particular area. Here we have the first slide, please just to review briefly, the pathogenesis progressing from the normal cervix through the chronic citti, which is essentially typical of just about any cervix that you look at under the microscope. We may exclude this term because according to Dr Fenoglio, this morning reserve cells probably are not a significant part of this process. So let's delete this line and go on to dysplasia and carcinoma. And two, the important thing clinically is that the median age of patients in any screen group who will demonstrate dysplasia is somewhere in the twenties. Therefore, it suggests that this process probably begins sometime after the initial pregnancy or after the changes that occur with adolescents coupled with sexual activity. The carcinoma in C two group again is about five or so years older. And the invasive carcinoma group is about 10 years older than the carcinoma in C two group, the important thing to remember. However, again, in the clinical management of these patients is that the time at which any CIN lesion may go on to invade is absolutely unknown. It may happen back in here. It may happen here. It may happen here and therefore the age at which this occurs and the predictability as to what is going to happen if a lesion is allowed to go untreated is open to question. May we have the next slide, please? We didn't mention much in the evaluation of some of these uh patients about the utilization of other methods of approach. We've talked about colposcopy. Uh We haven't talked about the old, tried and true or at least tried method of the Schiller test to determine the degree of epithelial abnormality that may exist in the cervix. I think it is also very important to stress at this time that in doing either the Schiller's test if you don't have colposcopy available or in doing colposcopy, that attention be paid to areas of the upper vagina. At the same time. I think that two things will happen. First, it will tell you whether there are any epithelial abnormalities in the or at any part of the vagina which should be removed or treated at the same time that you're going to treat whatever is on the cervix. Secondly, uh I think that uh if we take a look at uh the extent of our dissection in terms of removal of the vaginal cuff. The best time to determine this is prior to any type of definitive treatment such as Hysterectomy. And uh as you know, approximately one or 2% of patients uh will have some type of epithet abnormality out on the vagina years ago. Uh Stanley, we said that in evaluating patients with cervical intra epithelial carcinoma and then studying they removed vaginal cuff that they found as high as 21% had microscopic areas uh that were present on the vagina. This has not held up clinically either with colposcopic examination or in recurrences of the lesion in patients who did not have the vaginal Cuffy remove. It appears that the risk of a patient developing something in that vagina after she's had a carcinoma of the cervix as Dr Fino pointed out earlier is about 1 to 2 or perhaps 3%. It means however, that once a patient has had definitive treatment for her carcinoma in C two, that she should be followed very carefully. And that the upper vaginal and and uh vaginal cuff area be carefully evaluated on a periodic basis for the rest of her life. Here, you can see again, the typical nonstaining area that would mark both the transformation zone as well as the end of cervical canal where the glandular epithelium does not take up the stain. Now, may we have the next slide please? This just shows the extent of conization that we normally do at our institution in patients where we feel that we have to evaluate the cervix further. This would be in patients who have either a lesion that cannot be totally defined colposcopic or patients who may have endocervical curettings that show abnormal cells, even if it appears that the lesion is limited to the uh to the transformation zone. And occasionally you may see a patient like this. Um in doing the conization, we take a cone that is beyond the area of non staining or beyond, definitely beyond the transformation zone, go up into the canal. Roughly about uh 50% of the way or usually a couple of centimeters. We try to uh in doing this at the time that the cone is done. We do not use any kind of scrubbing or cleaning uh techniques to rub off uh the tissues because this plastic cells have a tendency to separate from one another. And you may find that if you go in and rub this cervix a little too briskly with the usual type of vaginal preparation. Prior to operation, you may wipe off surface cells. And perhaps then histologically what the pathologist will report to you is CN three or carcinoma in situ rather than dysplasia. We have the next slide please. And here is a finally uh the cervix which has been turned in uh after uh the cone specimen has been removed. Now, as you know, the concept of utilizing conization as definitive treatment for CIN of all phases has been studied over roughly about 10 to 15 years. Now, primarily in Australia and New Zealand, there have been clinics in this country also that have practiced the use of conization only. This is also a popular method of approach to this problem in Scandinavia and the United Kingdom. And generally speaking, in most reported series conization of the cervix apparently will control about 10 to 15% all but 10 to 15% of patients who have conization done as was done in the past for abnormal cytology alone. However, if we take and study the hysterectomy specimens of some of these patients, we find uh some interesting data. May we have the next slide please? Here we had we evaluated in patients who had ization of the cervix and were found to have carcinoma in C two as the uh as the major diagnosis. When we looked at 270 patients, we found that 151 of these patients also had dysplasia somewhere in the field. Again, I think demonstrating what has been brought out before that this is probably a continuum of a disease process. And then if you study your specimens carefully, you will find that a good number of patients will demonstrate certain degrees of dysplasia in addition to the major lesion, which was carcinoma in situ. And again, looking at these, we find that 58 of these patients had severe dysplasia in association with the carcinoma in si two again showing that continuum and the mild and moderate dysplasias were distributed roughly in the same manner. We have the next slide. Now, in looking at the Hysterectomy specimen after removal and generally speaking, we did the conization that I showed you here, followed by hysterectomy, usually within 24 to 48 hours, we treated the hysterectomy specimen of the cervix area, the same as the cone was treated. And we found that if we looked at patients with carcinoma and C two as a major lesion that we had a residual rate of 36 almost 37% in the Hysterectomy specimen. And I think this is fairly much in keeping with the type of data that we hear from other clinics. The residual carcinoma in situ after what is considered adequate conization varies between about 15 and 45%. If we take an ad to this, another 77 patients in whom there was no carcinoma in situ. But where dysplasia was left behind in the hysterectomy, we add another 28%. So roughly 65% of our patients in this series had residual disease at the time of the conation. It sounds as if this might be a good argument for the utilization of of conization as a fairly routine procedure. However, when we look at this type of information, we're talking about patients who only have abnormal cytology as they're presenting a feature and therefore, they were not evaluated, colposcopic, many of these lesions were much more advanced and therefore, probably covered a greater geographic area on the cervix were up into the areas where the glands of the cervix were involved. And therefore, we found a good bit of residual disease in most reported series too. If you look at the uh where the residual disease is, you'll find that most of it is up in the canal of the cervix. And I think it points out again, the importance if you're going to use lesser methods of treatment that you evaluate the endo cervical canal. And also if you're going to use the colposcope to identify the lesion that the lesion be totally visible within the transformation zone. May I have the next slide, please? Here we have something just a little further showing the type of in the hysterectomy specimen, the degree of dysplasia that was left behind. And we noted that the majority of patients had mild dysplasia as the residual lesion. You could argue about this somewhat that perhaps this was not going to be a significant lesion. Perhaps again, that the regression of these lesions might occur. I think we'll have the lights, please. I think that if we're going to look at the, at the possibility of utilizing just a lesser procedure, then it is important to take into account the fact that perhaps some of the milder dysplasias may regress, at least it appears that some might regress to a greater extent. But generally speaking, if we accept the concept that we're dealing with a continuum of a process that unless it is removed or destroyed will continue to grow, then I think we have to be fairly aggressive in our approach to these patients. I'd like to go on briefly from here to, we can put the slides off. Now, I'd like to go on briefly to discuss the evaluation of patients with the both teratogenic and archaic effects of des uh as you know, this is uh become quite an issue over the last five years since it was reported in 1970. Uh that a certain group of adolescent girls were found to have um a rare type of clear cell carcinoma of the vagina uh related to the fact that the mothers uh took uh des or some other type of non synthetic estrogenic substance during pregnancy. Since this time, approximately 250 girls were found to have clear cell carcinoma. And uh in this group, one of the striking things was the fact that the cytology was not really helpful, at least in these particular patients in detecting the presence of the clear cell carcinoma. And I think it points up what was brought out earlier today and by Doctor Roberts and that is that scraping of the tissues is probably very, very important in getting an adequate sample and I just had on Monday before I left, I had the daughter of a gynecologist who refers a lot of oncology to me. And unfortunately, his daughter had been having abnormal bleeding for a whole year. She had no history of des exposure could be determined from the mother's chart. Although the doctor who delivered this child was known to use a lot of des but nothing was on the record. The girl had been having post coal bleeding for a whole year, had seen two or three gynecologists in an area that I won't mention. Uh and uh all of these examinations were reported as showing uh very bad service and the the the cytology was uh normal. Finally, she discussed it with her father who had his partner take a look at her and lo and behold, she had a very bad looking area involving the cervix as well as the right vaginal fornix. And a biopsy showed a clear cell carcinoma. And I think it points out that in the approach to any of these lesions, we must maintain our clinical index of suspicion at all times. We have patients who come in who have cytology taken and we find that the cytology is normal and a lesion, there may be a gross lesion on the cervix. We've all seen this in our experience, a lesion that bleeds a lesion that looks angry, a lesion that doesn't feel right. The old crude clinical criteria of malignancy are there and yet because the smear is reported as class one or perhaps class two with some at ti you but nothing that we're going to get excited about this type of malignancy may be overlooked. And in my own experience, I still see too many patients who come in who have been having regular pap smears every six months or a year only to find that they turn up with a definite stage one B and occasionally stage two A carcinoma that for some reason or other was overlooked in previous screenings. But in going back to the to the girls with des exposure, we have about 600 girls now under surveillance in our clinic. Uh these girls are examined uh with cytology and again scraping from both the cervix as well as the vaginal es. In addition, they are examined colposcopic. Uh the solution is applied to determine areas that are abnormal. And if we find areas that are suspicious, then these are biopsies. Otherwise random biopsies are done of areas of adinos. And what we're finding is that approximately 85% of these girls with a positive history of des exposure have lesions that are, that are compatible with this first adinos. Secondly, the cox comb and incidentally, this youngster that I mentioned had a typical cox comb of the cervix. It's something that I think every gynecologist should be aware of because sometimes the patient will have absolutely no. And the awareness that such lesions may exist around the cervix and vagina, I think are very, very important. I think it's good to have this picture in your mind. Any time you're examining a young girl, particularly someone who is now between the age of 15 and 25 this lesion I think is going to disappear. But in the meantime, it may provide some sort of a hazard for the patient. The next question that arises is Adinos, is this a pre malignant lesion? There's no evidence and no one has ever followed a patient with Adinos that has become a clear cell carcinoma. Excuse me, we've all seen patients. However, with uh clear cell carcinoma with concomitant fields of adinos, this is not an uncommon finding. The other aspect of this particular entity is that more and more since the Adinos essentially represents an increase in the transformation zone, basically, all of this epithelium may be considered as epithelium in a transformation zone, which is much, much larger than what you have on the on the normal cervix. And as a result, there may be greater potential for abnormalities to develop because the metas process is going to be spread over a greater area. And recently, there has been some speculation and I think there is some evidence uh in, in some of the clinics, particularly Dr Stael's Clinic. And I think Doctor Richard also has some patients in this category where uh the uh the Adinos in in undergoing the meta plastic change has also gone on to develop the intraepithelial type of neoplasia, uh which we're talking about today, except that this appears to be occurring in the adinos areas in the vagina. So I think this is another thing to remember uh in, in terms of evaluating these patients. Uh I think we should consider the des exposed girl as one who may be at risk, although very small of developing clear cell carcinoma and she may after a while, perhaps as she gets into her thirties may be at some greater risk of developing the typical squamous lesions of uh of the CIN type. Finally, just to mention the vulva, it seems like we've been ignoring the vulva today and sort of spending our time up above but with regard to VVER lesions, uh I think that several things are important clinically. One is the importance of peritus. And I think that most patients who develop valva dystrophy of some type will have peritus as a major presenting symptom. I think that many times these patients are treated without adequate attention to what is going on in the vagina. I think we should rule out or rule in the possibility of parasitic infections in the vagina first. Then I think we should look at the VVER areas very carefully. The utilization of colposcopy and VVER disease I think is still in its infancy. But I think that as time goes on, we may, we may find that the colposcope or even a simple magnifying glass may be of help to us in this particular area. We should remember too that the lesions of the vagina and the velvet tend to be multifocal. And that uh in evaluating the vulva use of the blue technique that is staining and de staining with acetic acid may be helpful in identifying the areas of nuclear activity where biopsies should be taken in order to provide uh the uh the uh histologic information about uh what is going on with regard to the management of lesions of bowen's disease or intraepithelial neoplasia of the vulva. Again, if we have a localized patch or one or two lesions, these can usually be handled by wide local excision. Uh I think with careful postoperative observation, if there is a dystrophic lesion present, either of the atrophic or the hypertrophic type, these can be handled with either the use of estrogen or testosterone. And again, careful observation of the patient with periodic staining with tau and blue, I think is helpful in these particular patients. The other aspect of this is that patients with valva disease may have lesions up in the vagina or on the cervix. So that any lesions that appear on the vulva should be associated with careful screening of the vagina and cervix. In order to be sure that lesions in those areas are not overlooked. I'd like to just close. Now by again, re emphasizing the fact that an evaluation of these lesions and the clinical approach to their management. We should not forget the fact that, that we must know exactly what we're thinking about exactly what we're looking for. We must take into account the available techniques that we have to work with in order to get the best results. And the main thing when we're talking about pre malignant lesions is that we must never ever allow a patient to go on to become an invasive malignancy if we can in any way avoid it. Thank you. This program was produced through the mobile facilities of the television branch, Health Sciences, media division, Academy of Health Sciences, United States Army, Fort Sam Houston, Texas.