Items in AFP with MESH term: Precancerous Conditions
Assessing Oral Malignancies - Article
ABSTRACT: Oral cancers account for approximately 3 percent of all cases of cancer in the United States. An estimated 30,000 people will be diagnosed with oral cancer this year, and about one half of them will eventually die of the disease. The most common type of oral cancer is squamous cell carcinoma. Sixty percent of oral cancers are well advanced by the time they are detected, even though physicians and dentists frequently examine the oral cavity. The two most important risk factors for oral cancer are tobacco use and heavy alcohol consumption. The keys to reducing mortality are prevention and control. The earlier any intraoral or extraoral abnormalities or lesions are detected and biopsied, the more lives can be saved. Controversy exists whether screening programs effectively reduce the mortality rate. Specific step-by-step guidelines should be followed to perform an adequate examination of the head and neck.
ABSTRACT: Atypical glandular cells on Papanicolaou smears are an unusual but important cytologic diagnosis. The Bethesda system classifies atypical glandular cells of undetermined significance (AGUS) as glandular cells that demonstrate nuclear atypia appearing to exceed reactive or reparative changes but lacking unequivocal features of adenocarcinoma. AGUS occurs in approximately 0.18 to 0.74 percent of all cervical smears. Because of the high likelihood that AGUS is associated with significant clinical disease, simply repeating the Papanicolaou smear is not sufficient for the management of AGUS. Unlike women with atypical squamous cells of undetermined significance, a significant percentage of women with AGUS will have more serious lesions, such as high-grade preinvasive squamous disease, adenocarcinoma in situ, adenocarcinoma or invasive cancers from sites other than the cervix. Colposcopic examination is recommended for all women with a cytologic diagnosis of AGUS. Those women with AGUS that is suspicious for adenocarcinoma should undergo cervical conization, even in the absence of detectable abnormalities on colposcopic examination.
The Era of Targeted Therapies - Editorials
Pink-Colored Papule on the Dorsal Foot - Photo Quiz
ABSTRACT: New data have emerged since publication of the American Society for Colposcopy and Cervical Pathology's 2001 consensus guidelines for management of abnormal cervical cytology and histology. The 2006 guidelines include recommendations for special populations (i.e., adolescents and pregnant women). Human papillomavirus testing is now included for management of atypical glandular cytology, for follow-up after treatment for cervical intraepithelial neoplasia, and in combination with cytologic screening in women 30 years and older. The preferred management of atypical squamous cells of undetermined significance in adult women is reflex human papillomavirus DNA testing. Colposcopy is recommended for adult women with low-grade squamous intraepithelial lesion, atypical glandular cells, high-grade intraepithelial neoplasia, and atypical squamous cells-cannot exclude high-grade intraepithelial neoplasia. Cervical intraepithelial neoplasia, grade 1 can be managed conservatively in adult women, but treatment for cervical intraepithelial neoplasia, grades 2 and 3 is recommended. Immediate treatment is an option for adult women but not for adolescents with high-grade squamous intraepithelial lesion. Conservative management of adolescents with any cytologic or histologic diagnosis except specified cervical intraepithelial neoplasia, grade 3 and adenocarcinoma in situ is recommended. Colposcopy is preferred for pregnant women with low-grade squamous intraepithelial lesion and high-grade squamous intraepithelial lesion, but evaluation of the former may be deferred until no earlier than six weeks postpartum. Treatment during pregnancy is unacceptable unless invasive carcinoma is identified.
Screening for Cervical Cancer: Recommendation Statement - U.S. Preventive Services Task Force
Common Questions About Barrett Esophagus - Article
ABSTRACT: Barrett esophagus is a precancerous metaplasia of the esophagus that is more common in patients with chronic reflux symptoms, although it also occurs in patients without symptomatic reflux. Other risk factors include smoking, male sex, obesity, white race, hiatal hernia, and increasing age (particularly older than 50 years). Although Barrett esophagus is a risk factor for esophageal adenocarcinoma, its management and the need for screening or surveillance endoscopy are debatable. The annual incidence of progression to esophageal cancer is 0.12% to 0.33%; progression is more common in patients with high-grade dysplasia and long-segment Barrett esophagus. Screening endoscopy should be considered for patients with multiple risk factors, and those who have lesions with high-grade dysplasia should undergo endoscopic mucosal resection or other endoscopic procedures to remove the lesions. Although the cost-effectiveness is questionable, patients with nondysplastic Barrett esophagus can be followed with endoscopic surveillance. Lowgrade dysplasia should be monitored or eradicated via endoscopy. Although there is no evidence that medical or surgical therapies to reduce acid reflux prevent neoplastic progression, proton pump inhibitors can be used to help control reflux symptoms.