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  • 1
    ISSN: 1434-4726
    Keywords: Neuroendocrine tumor of the larynx ; Small-cell neuroendocrine carcinoma ; Carcinoid tumors Paraganglioma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Findings in the present study have confirmed that the diagnosis of neuroendocrine tumors of the larynx (NETL) requires that a panel of neuroendocrine markers and electron microscopy be performed. This means that the clinician must be aware of the clinical presentations of such patients and should send fresh biopsy specimens to the clinical laboratory for optimal tissue studies. As shown in this study, the possibility of misdiagnosis of an atypical carcinoid tumor (ACT) is rather high. In establishing a diagnosis, a part of the material should be fixed for conventional histology, a part for immunohistochemistry and a part for electron microscopy. The correct diagnosis of NETL is obviously of great importance for subsequent treatment and prognosis. Patients with the diagnosis of ACT of the larynx require surgical treatment. Our findings also show that small-cell neuroendocrine carcinomas of the larynx should be considered to be a disseminated disease at initial presentation. A metastatic workup is necessary, but radical surgical procedures should be avoided. The combination of radiotherapy and chemotherapy is always indicated.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The prevalence ofChlamydia trachomatis infection in a population of women with no symptoms of sexually transmitted disease was investigated. These women, aged 35–55 years, participated in a screening program for cervical cancer. With the use of a direct immunofluorescence method, 109 out of 2,470 smears tested were positive forChlamydia trachomatis, indicating an overall prevalence of 4.4%. No changes in prevalence were found when five-year cohorts of this group were analyzed, indicating that age-dependent changes or epidemiological factors do not result in a different (decreased) prevalence over the ages 35 to 55 years. The prevalence ofTrichomonas vaginalis and fungi, as detected by cytological screening, was lower than that observed forChlamydia trachomatis: 3.1 and 2.1%, respectively. Of the 109 smears positive forChlamydia trachomatis, 90 showed cervical cells with reactive changes (out of 1,490 smears with PAP II), whereas no cytological changes were found in 15 cases (out of 884 smears with PAP I). Changes suggestive of mild or moderate dysplasia were found in only four cases (out of 93 smears with PAP III). The results indicate thatChlamydia trachomatis is associated with reactive changes of endocervical cells and raise serious questions about whether prevention of possible secondary effects such as infertility and pelvic inflammatory disease can be achieved by a combined screening program for cervical cancer andChlamydia trachomatis.
    Type of Medium: Electronic Resource
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