Primary adenocarcinoma of the vagina successfully treated with neoadjuvant chemotherapy consisting of paclitaxel and carboplatin
Primary vaginal adenocarcinoma unassociated with antenatal diethylstilbestrol (DES) exposure is extremely rare. The strategy for treating this disease has not yet been established due to its rarity and, therefore, the prognosis remains poor. A 69-year-old woman presented with vaginal bleeding but no history of antenatal DES exposure. She had a solid tumor in the recto-vaginal space, diagnosed as FIGO stage III vaginal adenocarcinoma. After neoadjuvant chemotherapy consisting of paclitaxel and carboplatin, the tumor became undetectable. Thereafter, radiotherapy was applied to the pelvis and vagina in order to reinforce the state of remission. The patient remains free from recurrence 1 year after discharge. The present case was successfully treated with chemotherapy and radiotherapy, suggesting that chemotherapy may be an option for the treatment of this type of tumor.
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ABSTRACT: Primary vaginal adenocarcinomas are one of the rarest malignant neoplasms, which develop in the female genital tract. Because of the extremely low incidence, their clinical and pathologic characteristics are still obscure. Recently, we experienced a case of vaginal adenocarcinoma that appeared 7 yr after hysterectomy because of cervical intraepithelial neoplasia. The patient, a 65-yr-old obese woman, was diagnosed as having adenocarcinoma in the vaginal stump and was treated by simple tumor excision and radiation. Immunohistochemical and molecular biologic examinations indicated a potential association with human papilloma virus infection in the development of the vaginal adenocarcinoma. There has been no evidence of recurrence for 3 yr after the operation.
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ABSTRACT: Objectives: Primary mucinous vaginal adenocarcinoma of intestinal type is an extremely rare malignancy of uncertain histogenesis, which makes for a diagnostic challenge. We report a case and describe the histopathologic features and the unusual immunoprofile of this rare entity. Methods: We report a case of vaginal mucinous adenocarcinoma of intestinal type in a diethylstilbestrol-exposed woman in which intestinal metaplasia of the Skene duct was found at the time of recurrence. Results: As the histogenesis of primary vaginal intestinal-type adenocarcinomas remains uncertain, the finding of Skene duct metaplasia in association with invasive adenocarcinoma lends support to the origin of vaginal mucinous adenocarcinomas of intestinal type to be metaplasia, at least in some cases. Such an origin accounts for the unusual immunohistochemical profile, which raises concern for a metastatic adenocarcinoma of gastrointestinal origin. Conclusions: Recognition of this rare entity is important, particularly to avoid the pitfall of misdiagnosing metastatic disease.
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