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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists


 
CASE REPORT Table of Contents   
Year : 2022  |  Volume : 26  |  Issue : 5  |  Page : 30-33
Mucoepidermoid carcinoma - A common neoplasm at an unusual site, mimicking a benign cyst on cytology: Diagnostic pitfall!


1 Department of Pathology, Kasturba Medical College, Manipal, Karnataka, India
2 Department of Pathology, Shri Guru Ram Rai Institute of Medical and Health Sciences, Shri Mahant Indresh Hospital, Dehradun, Uttarakhand, India

Correspondence Address:
Sadaf Khan
Department of Pathology, Shri Guru Ram Rai Institute of Medical and Health Sciences, Shri Mahant Indresh Hospital, Patel Nagar, Dehradun, Uttarakhand
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jomfp.jomfp_277_21

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Mucoepidermoid carcinoma (MEC) is known to be a relatively common neoplasm of the major and minor salivary glands that can secondarily involve skin. The clinical manifestations, diagnostic cytology and histopathology of MEC presenting as a clinically benign periauricular cystic nodule have been analyzed. The challenge of accurate diagnosis can be illustrated by the fact that initially, on cytology, this tumor was misdiagnosed as a benign epidermal inclusion cyst due to the presence of mucin-filled cells which were misinterpreted as cyst macrophages. This case report emphasizes the need to include parotid tumors in the differential diagnosis of all periauricular cyst-like expansions. We also briefly discuss the reasons for false-positive cytology in this case. Delay in accurate diagnosis may result in larger surgical procedures, such as radical neck dissection, that may otherwise be avoided.


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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
Online since 15th Aug, 2007