Squamous Cell Carcinoma In Situ
Current Clinical Trials

Squamous Cell Carcinoma In Situ

This disease is usually multifocal and commonly occurs at the vaginal vault. Because vaginal intraepithelial neoplasia (VAIN) is associated with other genital neoplasias, the cervix (when present) and vulva should be carefully examined. The treatments listed below produce equivalent cure rates. The selection of treatment depends on patient factors and local expertise (e.g., anatomical distortion of the vaginal vault [related to wall closure at the time of hysterectomy] requires excision for technical reasons to exclude the possibility of invasion by buried disease). Lesions with hyperkeratosis respond better to excision or laser vaporization than to fluorouracil.[1]

Standard treatment options:

1. Wide local excision with or without skin grafting.
2. Partial or total vaginectomy with skin grafting for multifocal or extensive disease.
3. Intravaginal chemotherapy with 5% fluorouracil cream. Instillation of 1.5 g weekly for 10 weeks has been found to be as effective as more frequent use.[2]
4. Laser therapy.[2]
5. Intracavitary radiation therapy delivering 60 Gy to 70 Gy to the mucosa.[3,4] The entire vaginal mucosa should be treated.[5]

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage 0 vaginal cancer. The list of clinical trials can be further narrowed by location, drug, intervention, and other criteria.

General information about clinical trials is also available from the NCI Web site.

References

1. Wright VC, Chapman W: Intraepithelial neoplasia of the lower female genital tract: etiology, investigation, and management. Semin Surg Oncol 8 (4): 180-90, 1992 Jul-Aug.  [PUBMED Abstract]
   
   
2. Krebs HB: Treatment of vaginal intraepithelial neoplasia with laser and topical 5-fluorouracil. Obstet Gynecol 73 (4): 657-60, 1989.  [PUBMED Abstract]
   
   
3. Perez CA, Camel HM, Galakatos AE, et al.: Definitive irradiation in carcinoma of the vagina: long-term evaluation of results. Int J Radiat Oncol Biol Phys 15 (6): 1283-90, 1988.  [PUBMED Abstract]
   
   
4. Woodman CB, Mould JJ, Jordan JA: Radiotherapy in the management of vaginal intraepithelial neoplasia after hysterectomy. Br J Obstet Gynaecol 95 (10): 976-9, 1988.  [PUBMED Abstract]
   
   
5. Perez CA, Garipagaoglu M: Vagina. In: Perez CA, Brady LW, eds.: Principles and Practice of Radiation Oncology. 3rd ed. Philadelphia, Pa: Lippincott-Raven Publishers, 1998, pp 1891-1914. 
   
   

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