MALIGNANT TRANSFORMATION OF LARYNGEAL PAPILLOMAS
نویسندگان
چکیده
منابع مشابه
Consistent DNA hypermethylation patterns in laryngeal papillomas.
INTRODUCTION: This study examined the contribution of promoter hypermethylation to the pathogenesis of respiratory papillomatosis (RP), including recurrences (RRP) and progression to squamous cell carcinoma (SSC). MATERIALS AND METHODS: A retrospective cohort of 25 laryngeal papilloma cases included 21 RRP, two of which progressed to SCC. Aberrant methylation status was determined using the mul...
متن کاملMalignant progression in choroid plexus papillomas.
OBJECT Malignant progression of choroid plexus papillomas has been occasionally reported, but this issue has not yet been systematically addressed. METHODS Frequency and extent of malignant progression were examined in a retrospective series of 124 primary choroid plexus papillomas using uniform histological criteria. RESULTS After gross-total resection and a mean follow-up period of 59 mon...
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Solitary endobronchial papillomas (SEPs) are rare benign tumors of the lung, seldom transform to malignancy. This tumor had been reported occasionally manifest like carcinomas histologically. Herein we report 2 cases of SEPs; one is a squamous cell papilloma providing a false impression of interstitial micro-invasion. The other is a mixed squamous cell and glandular papilloma with massive lipid...
متن کاملPapillomas of the tracheobronchial tree with malignant degeneration.
Papillomas are rare tumors of the respiratory tract, which are usually considered benign. We studied a male patient with adult onset of squamous papillomatosis involving both the trachea and the bronchi, with malignant degeneration. When we obtained specimens bronchoscopically, only the bronchial lesions showed carcinomatous changes. Thoracotomy demonstrated carcinoma in the tracheal lesion as ...
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ژورنال
عنوان ژورنال: Nippon Jibiinkoka Gakkai Kaiho
سال: 1977
ISSN: 0030-6622,1883-0854
DOI: 10.3950/jibiinkoka.80.256