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Role of p63 in determining the histogenesis of low-grade neoplasms versus cystic lesion

 Department of Oral Pathology and Microbiology, ITS Centre for Dental Studies and Research, Ghaziabad, Uttar Pradesh, India

Correspondence Address:
Dipanshu Aggarwal,
Department of Oral Pathology and Microbiology, ITS Centre for Dental Studies and Research, Muradnagar, Ghaziabad - 201 206, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmau.jmau_85_21

The biological nature of salivary gland neoplasms and the overlapping characteristics that result from the heterogeneity of the cells of origin make diagnosis difficult. Hence, we intend to present a case of low grade mucoepidermoid carcinoma (MEC) on the palate and to understand the importance of biomarker such as p63 in the early diagnosis of tumor as it also has a role in its histogenesis. A 53-year-old female reported with a unilateral swelling for 3 months on posterolateral palatal region of the right side. Clinical differentials for such palatal swellings include a varied spectrum of lesions such as reactive, benign, and malignant lesions. Based on the incisional and excisional biopsy, histopathological findings and immunohistochemical examination with p63 the case were diagnosed with low grade MEC. The tumor cell differentiation in MEC could be the result of multiplicity of differentiation pathways leading to the formation of various histological patterns. This case report highlights the complexity of salivary gland pathology diagnosis and role of specific tumor marker such as p63 as an early marker for differentiation of salivary gland tumor such as low grade MEC from other cystic lesions occurring on the palate.

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    -  Aggarwal D
    -  Yadav S
    -  Jain A
    -  Shetty DC
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