[Primary vaginal adenocarcinoma of intestinal type: case report and review of literature]

Primary Vaginal Mucinous Adenocarcinoma of Intestinal Type-Clinical, Radiological and Morphological Aspects

Background and Objectives: Neoplasms of the vagina are rare and account for 1-2% of all tumors of the female reproductive system. Primary neoplasms of the vagina are most often carcinomas originating from squamous or glandular epithelium. Of the primary glandular tumors, clear cell, endometrioid, and serous adenocarcinomas are the most common types, while mucinous and mesonephric types are very rare. Mucinous adenocarcinoma is histologically subclassified into endocervical and intestinal types. We add to the existing literature another case of an extremely rare gynecological neoplasm-primary vaginal mucinous adenocarcinoma (PVMAC) intestinal type associated with vaginal villous adenoma with high-grade dysplasia. We discuss the clinical, radiological and morphological features of this rare entity. Materials and Methods: We report a case of a 59-year-old woman with PVMAC intestinal type associated with vaginal villous adenoma with high-grade dysplasia. The patient was evaluated with a gynecological exam, and biopsy, curettage and tumor excision were performed. The positron emission tomography-computed tomography (PET/CT) scan, at the level of the pelvis, supported the primary location of the disease. Histological and immunohistochemical methods were applied. Results: The gynecological examination of the vagina revealed an exophytic polypoid mass with a diameter of 3 cm, located on the posterior wall, in the area of introitus vaginae. The PET/CT scan revealed a hypermetabolic malignant formation involving the vagina and anal canal, without evidence of pelvic and inguinal lymphadenopathy, and also, it excluded disease at sites other than the vagina. The histological and immunohistochemical investigations, as well as the clinical and radiological data, lent support to the diagnosis "primary vaginal mucinous adenocarcinoma intestinal type". Conclusions: PVMAC intestinal type is a rare gynecological pathology, which presents a serious challenge for oncogynecologists, radiologists and pathologists.

Primary HPV-Associated Enteric-Type Adenocarcinoma of Vagina: A Case Report

Primary enteric type adenocarcinomas of the vagina are extremely rare. We present a 63-year-old woman who had a polypoid mass localized to the distal vagina. The lesion was composed of a columnar glandular cell proliferation with focal cribriforming, reminiscent of tubular adenoma. Immunohistochemical stains were notable for expression of enteric markers (CDX2 and KRT20), as well as negativity for Mullerian markers (PAX8, ER, and PR), diffuse expression for p16, and positivity for high-risk HPV mRNA expression. Ultimately, a diagnosis of vaginal primary HPV-associated enteric type adenocarcinoma was rendered for this unusual lesion. To our knowledge, no prior cases of HPV-associated enteric type adenocarcinomas of the vagina have been described before.

Small Bowel Evisceration through the Vaginal Vault: A Rare Surgical Emergency

Small bowel evisceration through the vagina is a rare surgical emergency that requires urgent surgical intervention because of the risk of developing acute small bowel ischemia. We present a case of a 91 year old female presenting with acute small bowel evisceration with majority of her small bowel visible outside the vagina. The bowel wall was edematous requiring emergent laparotomy and reduction of bowel with repair of the vaginal vault. The patient did not require bowel resection. Transvaginal small bowel evisceration is uncommonly described in the literature. Rare cases are reported in elderly, post-menopausal women who have undergone hysterectomy. Multiple approaches to surgical management including laparoscopic, open abdominal, transvaginal as well as combined approaches have been described. Perineal herniation must be kept in the differential in elderly post-hysterectomy patients with sudden onset of abdominal pain with urgent surgical intervention advised.