Indian Journal of Pathology and Microbiology

CASE REPORT
Year
: 2018  |  Volume : 61  |  Issue : 4  |  Page : 564--566

Dedifferentiation of oncocytic epithelial–myoepithelial carcinoma to mucoepidermoid carcinoma in parotid gland: A rare case report


Poonam Rani1, Meeta Singh1, Chetna Mehrol1, Amita Jain Gupta1, Nita Khurana1, Ravi Meher2 
1 Department of Pathology, Maulana Azad Medical College and Associated Lok Nayak Hospital, New Delhi, India
2 Department of ENT, Maulana Azad Medical College and Associated Lok Nayak Hospital, New Delhi, India

Correspondence Address:
Meeta Singh
K-171, Sarita Vihar, New Delhi - 110 076
India

Epithelial–myoepithelial carcinomas (EMCs) account for <1% of all salivary gland malignancies. Till now, 23 cases of dedifferentiated EMC have been reported to the best of our knowledge. However, dedifferentiation of oncocytic EMC to mucoepidermoid carcinoma is extremely rare. A 38-year-old female presented with right post aural swelling 4 cm × 2 cm in size for 6 months. Surgical excision was carried out, and we received partly skin-covered tissue 5 cm × 2 cm in size. Sections examined showed features of oncocytic EMC dedifferentiating into mucoepidermoid carcinoma. Myoepithelial component showed oncocytic change which was highlighted by p63.


How to cite this article:
Rani P, Singh M, Mehrol C, Gupta AJ, Khurana N, Meher R. Dedifferentiation of oncocytic epithelial–myoepithelial carcinoma to mucoepidermoid carcinoma in parotid gland: A rare case report.Indian J Pathol Microbiol 2018;61:564-566


How to cite this URL:
Rani P, Singh M, Mehrol C, Gupta AJ, Khurana N, Meher R. Dedifferentiation of oncocytic epithelial–myoepithelial carcinoma to mucoepidermoid carcinoma in parotid gland: A rare case report. Indian J Pathol Microbiol [serial online] 2018 [cited 2020 Jul 10 ];61:564-566
Available from: http://www.ijpmonline.org/article.asp?issn=0377-4929;year=2018;volume=61;issue=4;spage=564;epage=566;aulast=Rani;type=0