Photodynamic therapy and endoscopic metal stent placement for esophageal papillomatosis associated with squamous cell carcinoma

Esophageal squamous papillomatosis is a rare condition associated with human papilloma virus infection and has been complicated by the development of squamous cell carcinoma. Photodynamic therapy using porfimer sodium has been used for the treatment of esophageal cancer but has not been utilized in the treatment of esophageal squamous papillomatosis. We report here the first case of papillomatosis and obstructing squamous cell carcinoma of the esophagus palliated with porfimer sodium photodynamic therapy indicating successful photosensitizer uptake in papilloma-laden tissue. Extensive debulking of papilloma and tumor allowed esophageal recanalization and placement of a self-expanding metal stent for long-term dysphagia palliation. This unique case highlights the combined use of endoscopic techniques for optimal treatment results.     

Effect of health beliefs on delays in care for abnormal cervical cytology in a multi-ethnic population

CONTEXT: Women from racial and ethnic minorities in the United States have higher rates of cervical cancer and present with later stage disease compared to whites. Delays in care for abnormal Papanicolaou (Pap) smears can lead to missed cases of cervical cancer or late-stage presentation and may be one explanation for these differences. OBJECTIVE: To determine if race and ethnicity, health beliefs, and cancer knowledge are associated with delays in care for abnormal Pap smears. DESIGN, PARTICIPANTS, AND SETTING: We conducted a mailed survey with telephone follow-up of all women with an abnormal Pap smear who received care at Kaiser Permanente Los Angeles Medical Center between October 1998 and October 1999 (n = 1,049). MEASUREMENTS AND MAIN RESULTS: A delay in care was defined as not attending the first scheduled clinic visit to follow up on an abnormal Pap smear, or requiring multiple contact attempts, including a certified letter, to schedule a follow-up visit. Our response rate was 70% (n = 733) and the sample was 51% Latina. Spanish-speaking Latinas and women of Asian descent were more likely to endorse fatalistic beliefs and misconceptions about cancer. Thirteen percent of the sample delayed follow-up on their abnormal Pap smear. Women who delayed care were more fatalistic and endorsed more misconceptions about cervical cancer. Delays in care were not independently associated with race and ethnicity. CONCLUSIONS: Health beliefs and cancer knowledge differed by race and ethnicity among women in a large managed care organization. Fatalistic health beliefs and misconceptions about cancer, but not race and ethnicity, were independently associated with delays in care.     

Computer-aided diagnosis of the airways: beyond nodule detection

Although to date, the major impetus for the development of computer-assisted diagnosis (CAD) has been the detection of pulmonary nodules, CAD should properly be viewed as a potential tool for assisting radiologic interpretation of the entire gamut of chest diseases, including not just enhanced detection of disease but also characterization and quantification, ideally leading to improved patient management. The use of CAD to improve visualization of the airways using advanced computer techniques, including sophisticated methods for obtaining 3-dimensional segmentation of the central airways and, in particular, the development of virtual bronchoscopy has been recently studied. In this paper, the authors review the development of a specific series of CAD applications enabling automated identification and characterization of chronically inflamed airways. The advantages to the use of computer methodologies to quantify peripheral airway disease include reproducible visualization methods to display the location, severity, and extent of airway dilatation, bronchial wall thickening, and the presence of mucoid impacted airways. Currently, a number of semiquantitative global scoring systems have been proposed to assess disease extent and severity in patients with bronchiectasis. Unfortunately, with the exception of patients with cystic fibrosis, these are rarely if ever employed, largely owing to the considerable inconvenience of measuring individual airway dimensions and computing a global score. It is apparent that for this specific purpose, CAD may be ideally suited. Automated staging allows for more complete assessment of the entire bronchial tree while providing improved standardization and eliminating an otherwise tedious and time-consuming task.