Abstract
A mammary fibroadenoma with prominent sebaceous gland-like structures in a female Donryu rat aged 67 weeks was immunohistochemically investigated. The tumor demonstrated a mixture of both epithelial and connective tissue components, the former having both single- and multi-layered patterns. Characteristic sebaceous gland-like structures were apparent in connection with multi-layered epithelium. Area of single-layered epithelium comprised well-differentiated myoepithelial cells positive for alpha-smooth muscle actin (alpha-SMA), similar to mammary ducts. In contrast, many epithelial cells on the basal sides of multi-layers were negative for alpha-SMA, but positive for cytokeratin 14 (CK14), suggesting pluripotency. From these results, we diagnosed this case as a mammary fibroadenoma with sebaceous gland metaplasia.
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 callDisclaimer: 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.
