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Clinicopathological Study of Primary Intraosseous Squamous Cell Carcinoma of the Jaw and a Review of the Literature

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Title: Clinicopathological Study of Primary Intraosseous Squamous Cell Carcinoma of the Jaw and a Review of the Literature
Authors: Naruse, Tomofumi / Yanamoto, Souichi / Sakamoto, Yuki / Ikeda, Tohru / Yamada, Shin-ichi / Umeda, Masahiro
Issue Date: Dec-2016
Publisher: American Association of Oral and Maxillofacial Surgeons
Citation: Journal of Oral and Maxillofacial Surgery, 74(12), pp.2420-2427; 2016
Abstract: Purpose Primary intraosseous squamous cell carcinoma (PIOSCC) is a rare malignant odontogenic tumor that originates from odontogenic epithelial remnants. It is often difficult to diagnose PIOSCC definitively; hence, extraction or surgical treatment is performed before the initial diagnosis in most cases. The present study examined new insights into and prognostic factors of patients with PIOSCC admitted to the authors' department. Materials and Methods An extensive record review was conducted of patients who underwent radical surgery for PIOSCC from January 2001 through December 2014. Results Of all cases of OSCC, the frequency of PIOSCC was 1.45%. The 2-year relapse-free survival (RFS) and overall survival (OS) rates were 50.0 and 41.6% in all cases, respectively. Three patients underwent surgery or tooth extraction before the initial diagnosis; in fact, intervention before initial diagnosis was found to be an important poor prognostic factor for RFS and OS. In contrast, patients who were not treated before the initial diagnosis was made did not exhibit any locoregional recurrence. Conclusions The treatment of PIOSCC should be similar to that for oral cancer with at least clinical stage T3N0 in the National Comprehensive Cancer Network clinical practice guidelines. In addition, cases of PIOSCC that are not treated before the initial diagnosis are more likely to obtain a good prognosis.
Keywords: Primary intraosseous squamous cell carcinoma / extraction / prognostic factor
URI: http://hdl.handle.net/10069/37370
ISSN: 02782391
DOI: 10.1016/j.joms.2016.05.006
Rights: © 2016 American Association of Oral and Maxillofacial Surgeons. / This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/37370

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