Incidence of IP and risk of malignant transformation in the Swedish population 1960–2010

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• 作者：Alexandra Elliot ; Linda Marklund…
• 关键词：Inverted papilloma ; Squamous cell carcinoma ; Neoplastic cell transformation ; Incidence ; Registries
• 刊名：European Archives of Oto-Rhino-Laryngology
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：274
• 期：3
• 页码：1445-1448
• 全文大小：359KB
• 刊物类别：Medicine
• 刊物主题：Otorhinolaryngology; Neurosurgery; Head and Neck Surgery;
• 出版者：Springer Berlin Heidelberg
• ISSN：1434-4726
• 卷排序：274

文摘

The true incidence of inverted papilloma (IP) is not yet known. From hospital-based studies, its incidence has been estimated to approximately 0.5/100,000 person years. Earlier hospital case studies have shown that IP can undergo a malignant transformation in 1–53 %. The frequency of its malignant transformation on a population basis is unknown. To our knowledge, no standardised incidence ratio (SIR) has been reported for malignancies among IPs. This study aims to investigate these incidences on a population basis. Using the data from the Swedish Cancer Registry (SCR), we have identified patients with IP and patients with Squamous Cell Carcinoma (SCC) diagnosed between 1960 and 2010 in Sweden. Incidence of IP and incidence of SCC among patients with IP and SIR were analyzed. Eight hundred and fourteen patients with IP were identified. The incidence of IPs reported to the SCR increased from 1960 to 2010. In this cohort, SCC was overrepresented, as compared with the general population. The incidence of IP in the Swedish population seems to have increased.