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1.
Acta Cytol ; 63(3): 240-246, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30897562

RESUMO

OBJECTIVES: The diagnostic performance of cytology in esophageal squamous cell carcinoma (ESCC) is meticulously described. METHODS: Cytological and biopsy specimens were prospectively taken during esophagogastroduodenoscopy of 123 individuals in 2013 and 2014. Cytology samples were maintained in preservative fluid until processing and biopsies were formalin-fixed and paraffin-embedded. RESULTS: Based on endoscopic biopsy results, 70 cases were positive for ESCC whilst 53 were negative for cancer. In addition, brush cytology showed high sensitivity and specificity (98.57 and 96.23%, respectively) in detecting the disease, and high accuracy (97.5%) comparable to that provided by histopathology which is the accepted gold standard. CONCLUSION: Brush cytology specimens preserved in liquid medium may be a good alternative for ESCC diagnosis.


Assuntos
Biópsia/métodos , Citodiagnóstico/métodos , Neoplasias Esofágicas/patologia , Carcinoma de Células Escamosas do Esôfago/patologia , Esôfago/patologia , Estudos Transversais , Técnicas Citológicas/métodos , Neoplasias Esofágicas/diagnóstico , Carcinoma de Células Escamosas do Esôfago/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Conservantes Farmacêuticos , Estudos Prospectivos , Sensibilidade e Especificidade , Preservação de Tecido/métodos
2.
Acta Cytol ; 61(6): 425-433, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28564641

RESUMO

OBJECTIVE: To compare the results of cervical cytology and high-risk HPV tests using samples obtained using two different collection modalities in a population of Brazilian women: self-collection (vaginal lavage) and cervical Pap testing. METHODS: We enrolled 204 women who were aged 18-64 years and had previously obtained abnormal cervical cytology test results; 83.8% of them agreed to participate. The sample was divided into two aliquots: one for the cytological study and one for the molecular analysis of high-risk HPV. RESULTS: Fifty-eight percent of the participants preferred to utilize self-collection as an alternative screening method. However, we noticed that the HPV positivity rate was significantly lower in self-collected samples when compared to those obtained using the conventional collection method (p = 0.035). The cytology tests of the samples obtained via self-collection were sensitive and had a positive predictive value and an area under the curve (AUC) that were significantly lower than those of the Pap test. However, the specificity and negative predictive value of these tests were similar. When compared with the HPV test, the self-collected samples demonstrated lower accuracy in predicting high-grade cervical intraepithelial neoplasia or worse, with a significantly lower sensitivity, positive predictive value, and AUC than the cervical Pap test samples. CONCLUSION: Self-collection by vaginal lavage is simple and well accepted by women. Due to its limitations, however, self-collection by lavage should be utilized with caution.


Assuntos
Infecções por Papillomavirus/diagnóstico , Displasia do Colo do Útero/diagnóstico , Displasia do Colo do Útero/virologia , Neoplasias do Colo do Útero/diagnóstico , Adolescente , Adulto , DNA Viral/análise , Feminino , Humanos , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Gradação de Tumores/métodos , Manejo de Espécimes/instrumentação , Manejo de Espécimes/métodos , Neoplasias do Colo do Útero/virologia , Ducha Vaginal/métodos , Esfregaço Vaginal/métodos , Adulto Jovem
3.
Oncology ; 92(4): 213-220, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28142146

RESUMO

BACKGROUND: Surgical staging is associated with a significant rate of upstaging compared to clinical/radiological staging in patients with locally advanced cervical cancer. OBJECTIVE: To analyze the stage-specific percentage of pelvic and para-aortic lymph node metastases and the upstaging ratio in a prospective randomized trial (Uterus-11). METHODS: FIGO stage IIB-IVA cervical cancer patients were randomized to surgical staging (arm A) or to clinical staging and primary chemoradiation (arm B). Arm B patients underwent CT-guided biopsy of suspicious para-aortic lymph nodes. Confirmed para-aortic metastasis patients received extended-field radiation therapy. RESULTS: A total of 234 patients were enrolled, including 120 (arm A) and 114 (arm B) treated per protocol. The groups were well balanced. Pelvic and para-aortic lymph node metastases were identified after surgical staging in 51 and 24% of patients, respectively (p < 0.001). Pelvic and para-aortic lymph node metastases were confirmed in 45 and 20% of IIB patients and in 71 and 37% of IIIB patients, respectively. Upstaging occurred in 39/120 (33%) in arm A and in 9/114 (8%) in arm B (p < 0.001). CONCLUSION: The histological results in both groups led to a considerable rate of upstaging. Oncological data from the Uterus-11 study may reveal whether modified therapy translates into a survival benefit.


Assuntos
Neoplasias Pélvicas/epidemiologia , Neoplasias do Colo do Útero/patologia , Adulto , Idoso , Aorta , Feminino , Humanos , Metástase Linfática , Pessoa de Meia-Idade , Neoplasias Pélvicas/patologia , Neoplasias Pélvicas/secundário , Estudos Prospectivos , Tomografia Computadorizada por Raios X , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/cirurgia , Adulto Jovem
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