MALAT1::PLAG1 Fusion in Pleomorphic Adenoma with Mucinous and Squamous Metaplasia: A Diagnostic Pitfall Mimicking Mucoepidermoid Carcinoma (ex Pleomorphic Adenoma)
Pleomorphic adenoma (PA), the most common salivary neoplasm, is capable of tremendous histologic diversity. Co-occurrence of squamous and mucinous differentiation in PA is a rare phenomenon generally considered within its histologic spectrum, though previously advocated by some as evidence of mucoepidermoid carcinoma (...