Abstract
We describe an unusual case of polymorphous low-grade adenocarcinoma arising from the inner side of the upper lip of a 48-year-old woman. This tumor was firstly reported by Evans and Batsakis (1984) and was adopted as a new entity in the subclassification of adenocarcinoma by the World Health Organization Classification (1991). The clinical course and histopathological and immunohistochemical characteristics are described with a literature review concerning this case. Histologic features include a variety of growth patterns, such as ductal, trabecular, and solid structures. Immunohistochemical analyses showed positive stainings for cytokeratin, vimentin, and S-100 protein. In addition, a few cells forming ductal structures also stained positively for epithelial membrane antigen.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Japanese Journal of Oral & Maxillofacial Surgery
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
