RESUMO
Vaginal villous or tubulovillous adenomas (TVA) are uncommon tumors histologically similar to their intestinal counterparts. After reviewing the literature, we report the eighth case of TVA, which presented as a polypoid tumor in the vagina, at suburethral level, in a 19-yr-old woman with Arnold-Chiari type II malformation and a myelomeningocele at birth. The tumor consisted of long villi lined by columnar cells with brush borders, pseudostratified nuclei, and foci of high-grade atypia. Immunohistochemistry was positive for cytokeratin 7, estrogen and progesterone receptors, CA19.9, p16, p53, and Ki-67 (53%), with a normal membranous pattern for ß-catenin, but negative for cytokeratin 20, CDX2, carcinoembryonic antigen, chromogranin A, and synaptophysin. Neither human papillomavirus nor mutations in the K-RAS, BRAF, or LKB1/STK11 genes were detected. Although a rare neoplasm, awareness of this tumor is important as it must be distinguished from colonic adenocarcinoma or other malignant or benign conditions. The existence of 2 previously reported malignant cases merging with TVAs, and the presence of foci of high-grade dysplasia (p53-positive) in the present case, support TVA as a premalignant lesion.
Assuntos
Adenoma Viloso/patologia , Neoplasias Vaginais/patologia , Adenoma Viloso/complicações , Adenoma Viloso/metabolismo , Malformação de Arnold-Chiari/complicações , Biomarcadores Tumorais/análise , Feminino , Humanos , Imuno-Histoquímica , Meningomielocele/complicações , Neoplasias Vaginais/complicações , Neoplasias Vaginais/metabolismo , Adulto JovemRESUMO
BACKGROUND: Breast cancer is a heterogenous disease that impacts racial/ethnic groups differently. Differences in genetic composition, lifestyles, reproductive factors, or environmental exposures may contribute to the differential presentation of breast cancer among Hispanic women. MATERIALS AND METHODS: A population-based study was conducted in the city of Santiago de Compostela, Spain. A total of 645 women diagnosed with operable invasive breast cancer between 1992 and 2005 participated in the study. Data on demographics, breast cancer risk factors, and clinico-pathological characteristics of the tumors were collected. Hormone receptor negative tumors were compared with hormone receptor postive tumors on their clinico-pathological characteristics as well as risk factor profiles. RESULTS: Among the 645 breast cancer patients, 78% were estrogen receptor-positive (ER+) or progesterone receptor-positive (PR+), and 22% were ER-&PR-. Women with a family history of breast cancer were more likely to have ER-&PR- tumors than women without a family history (Odds ratio, 1.43; 95% confidence interval, 0.91-2.26). This association was limited to cancers diagnosed before age 50 (Odds ratio, 2.79; 95% confidence interval, 1.34-5.81). CONCLUSIONS: An increased proportion of ER-&PR- breast cancer was observed among younger Spanish women with a family history of the disease.
Assuntos
Neoplasias da Mama/metabolismo , Carcinoma/metabolismo , Saúde da Família , Receptores Citoplasmáticos e Nucleares/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/etnologia , Neoplasias da Mama/etiologia , Neoplasias da Mama/patologia , Carcinoma/etnologia , Carcinoma/etiologia , Carcinoma/patologia , Estudos de Coortes , Suscetibilidade a Doenças , Saúde da Família/estatística & dados numéricos , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Fatores de Risco , EspanhaRESUMO
Signet-ring cell carcinoma presenting in the uterine cervix is an uncommon neoplasm. It is usually a metastasis from a primary gastric tumor; only rarely, cervical involvement is the first manifestation of the disease. Primary signet-ring carcinoma of the cervix is extremely unusual, and it is always necessary to rule out a metastatic neoplasm. We report 3 cases of signet-ring cell carcinoma diagnosed in cervical biopsies. All cases were initially considered as metastatic, but a primary site other than the cervix could be confirmed in only 2 cases. Although autopsy was not authorized, a very comprehensive clinical workup and the evolution of the disease support the interpretation of the third case as a primary neoplasm. Primary signet-ring cell carcinoma of the cervix is an extraordinary event-the diagnosis of which requires excluding a metastasis from the gastrointestinal tract (usually the stomach), the ovary, or the breast.
Assuntos
Carcinoma de Células em Anel de Sinete/patologia , Carcinoma de Células em Anel de Sinete/secundário , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/secundário , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células em Anel de Sinete/diagnóstico , Carcinoma de Células em Anel de Sinete/tratamento farmacológico , Evolução Fatal , Feminino , Humanos , Neoplasias Gástricas/patologia , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/tratamento farmacológicoRESUMO
BACKGROUND: Involvement of the female genital tract by Darier's disease, an unusual genodermatosis, is uncommon, and the manifestation of the disease in a cervicovaginal smear is exceptionally rare. CASE: A 39-year-old woman had an abnormal Pap smear caused by involvement of the female genital tract by Darier's disease. Cytologic examination showed features consistent with a low grade squamous intraepithelial lesion, but during a biopsy it was found to be vaginal involvement by Darier's disease. CONCLUSION: The correct interpretation of cytologic findings is not possible when the diagnosis of Darier's disease is not known since a low grade squamous intraepithelial lesion cannot be ruled out. This case underlines the importance of knowing the patient's medical histoiy in any moment of medical attention.