Squamous Metaplasia in Pleomorphic Adenoma: A Diagnostic and Prognostic Enigma

Pleomorphic adenoma (PA) is the most common benign salivary gland tumor. Histologically, squamous metaplasia has been reported in PA, but has rarely been documented as being extensive enough to cause significant misdiagnosis. Here, we present an unusual case of PA in a 50-year-old female patient pre...

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Detalles Bibliográficos
Autores principales: Sharma, Swati, Mehendiratta, Monica, Chaudhary, Nivedita, Gupta, Vineet, Kohli, Maulshree, Arora, Anjana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Society of Pathologists and the Korean Society for Cytopathology 2018
Materias:
Case Study
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6250938/
https://www.ncbi.nlm.nih.gov/pubmed/30269471
http://dx.doi.org/10.4132/jptm.2018.07.15
Descripción
Sumario:Pleomorphic adenoma (PA) is the most common benign salivary gland tumor. Histologically, squamous metaplasia has been reported in PA, but has rarely been documented as being extensive enough to cause significant misdiagnosis. Here, we present an unusual case of PA in a 50-year-old female patient presenting with swelling on the postero-lateral aspect of the palate for a week. Histopathologically, the tumor exhibited the features of conventional PA with extensive squamous metaplasia and giant keratotic lamellae in cyst-like areas. Such exuberant squamous metaplasia and keratin can be a diagnostic and prognostic pitfall and lead to overtreatment of the patient.

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