INTRACAVITARY IRRADIATION OF VAGINAL NEOPLASMS.
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This retrospective review of nine infants treated for vaginal tumors between 1964 and 1986 identifies the spectrum of lesions and examines the trend toward more conservative surgical therapy. Our patients' ages ranged from 1 to 30 months. Symptoms of vaginal bleeding or protruding tissue prompted examination under general anesthesia in all cases. Two children had benign protruding polypoid masses treated by simple excision. Seven had malignant tumors, two with endodermal sinus lesions and five with embryonal rhabdomyosarcoma. Early in this series, surgical therapy for embryonal rhabdomyosarcoma consisted of either anterior or complete pelvic exenteration, with adjuvant chemotherapy given in two of the three patients. One patient was operated on prior to the development of effective chemotherapy, and died of recurrent tumor 14 months after surgery. A second patient died from cardiac failure secondary to adriamycin toxicity 6 years after initial therapy. A third patient underwent total pelvic exenteration followed by successful reanastomosis of the colon to the anal verge. This patient, a female, is the oldest survivor and is free of disease 14 years after therapy. The most recent therapeutic approach used in two patients with embryonal rhabdomyosarcoma consisted of local tumor excision followed by postoperative chemotherapy. Both patients are alive and disease-free 9 and 11 years after therapy. Two patients with endodermal sinus tumor were treated with chemotherapy after simple excisional biopsy. They were then followed with serial vaginal biopsies at 3-month intervals. One required a partial vaginectomy for local recurrence 21 months after initial presentation. Both patients are alive and disease-free 18 months and 4 years after surgery.
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Papillomavirus-associated cervical cancer is the second most common neoplasm in women but has rarely been reported in animals. This report describes cervical and vaginal intraepithelial neoplasms identified in routine histologic specimens obtained from 20 (5.2%) of 385 female cynomolgus macaques (Macaca fascicularis) being used in long-term studies. Lesion incidence was similar in both control and hormonally treated animals (4.7% and 5.5%, respectively). Neoplasms included benign vaginal papillomas, mild to severe intraepithelial dysplasias, and two invasive cervical carcinomas. Common morphologic features included koilocytosis, nuclear atypia, and expansion of the basal epithelium. Selective staining of lesions with at least one of three papillomavirus antibodies was observed in all cases (20 of 20). In contrast, immunostaining of lesions was negative for Epstein-Barr-related virus proteins (0 of 20). The unique similarities between the observed lesions and those seen in women suggest that macaques may provide a suitable animal model for study of papillomavirus oncogenesis.
OBJECTIVE: Our purpose was to determine the effectiveness of 5-fluorouracil (5-FU) in the treatment of vaginal intraepithelial neoplasia (VAIN). MATERIALS AND METHODS: The study was performed in 30 patients with a mean age of 54 years and previous diagnoses from reviewed records and histopathology slides selected from a group of 65 patients with VAIN from 1980 to 1998. Patients received intravaginal treatment with 5-FU, 1.5 g once weekly for 10 weeks and all patients were followed up for at least 2-years. Papanicolaou smear and colposcopy were performed, as was biopsy when indicated. RESULTS: Twenty eight (93%) patients with VAIN had prior or concurrent anogenital squamous neoplasia, including 5 with invasive cervical carcinoma and 23 with cervical intraepithelial neoplasia. In 23 of 30 treated patients (77%), VAIN went into remission after a single treatment; in 3, (10%), it went into remission after two treatment; 3 (10%) had recurrent VAIN 3; and in 1 (3%) it progressed to invasive vaginal cancer. The treatment was well tolerated. CONCLUSIONS: The 5-FU is an option choice for VAIN treatment. It is effective, with minimal slide effects. Its use should be confined to treating extensive or multifocal high-grade VAIN.
BACKGROUND AND AIMS: The increase finding of vaginal intraepithelial neoplasia (VaIN) in young women has led to the need to develop personalized conservative treatment. The authors studied the use of CO2 laser in the treatment of VaIN, evaluating the efficacy, repeatability, complications and the conservation of sexual function. METHODS: A total of 37 consecutive patients with histologically demonstrated VaIN (10 VaIN 1, 14 VaIN 2 and 13 VaIN 3): mean age 45.3 years, 37.8% aged < 35 years, 20/37 in childbearing age; VaIN was isolated in two patients, synchronous in 22 and in 13 cases it was metachronous with other intraepithelial or invasive genital neoplasia. 30/37 patients were treated with laser surgery as outpatients for a total of 41 operations (37 vaporisations and four excisions) using colposcopic guided CO2 laser with a constant emission power of 35 watts or 30 watts in the pulsed mode, under local anaesthesia, following the application of 5% acetic acid. RESULTS: Twenty-one (87.5%) of the 24 patients evaluated at 12 months were negative after one (16 patients) or more treatments (from 2 to 5 in 5 patients). Following the second recidivation, one elderly patient preferred traditional demolitive surgery; 2 patients are still awaiting further laser surgery. Five patients with multifocal lesions associated topical treatment with 5-fluorouracil. None of the sexually active patients complained of dyspareunias after treatment. CONCLUSIONS: Given the lack of other equally effective treatment and with the aim of preserving genital integrity, the authors regard laser surgery as the elective treatment for VaIN 2 and 3.
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