What question did this study set out to answer?

The study aims to evaluate clinicopathological and immunohistochemical profiles to differentiate between unconventional Warthin tumors and mucoepidermoid carcinomas.

April 12, 2026Open Access

Preliminary diagnostic criteria for distinguishing metaplastic Warthin tumors from mucoepidermoid carcinomas rich in lymphoid stroma

Key Points

The study aims to evaluate clinicopathological and immunohistochemical profiles to differentiate between unconventional Warthin tumors and mucoepidermoid carcinomas.
Analyzed eleven low-grade salivary gland tumors with Warthin-like features.
Grouped tumors into two categories based on epithelial structures.
Examined immunohistochemical staining patterns for various markers.
Immunohistochemistry effectively distinguished Warthin-like mucoepidermoid carcinoma from metaplastic Warthin tumor.
Key markers included CK7 and mitochondrial patterns suggesting metaplastic Warthin tumor presence.
Basal CK14, CK5/6, and p63 helped differentiate these tumors with specificity.

Abstract

Highlights ■ Immunohistochemistry distinguishes Warthin-like mucoepidermoid carcinoma from metaplastic Warthin tumor. ■ CK7, mitochondrial patterns, and double-layer epithelium suggest metaplastic Warthin tumor. ■ Basal CK14, CK5/6, and p63 distinguish metaplastic Warthin tumor from Warthin-like mucoepidermoid carcinoma. ABSTRACT Objective: This study aimed to analyze the clinicopathological and immunohistochemical profiles of unconventional Warthin tumors and mucoepidermoid carcinomas. Methods: Eleven low-grade salivary gland tumors with Warthin-like features were analyzed. Group A (n=6) showed a double-layered oncocytic epithelium in less than 50% of the ...

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Cite This Study

Bonfitto et al. (Thu,) studied this question.

synapsesocial.com/papers/69db37b04fe01fead37c5c52 https://doi.org/https://doi.org/10.31744/einstein_journal/2026ao1591

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