Journal of Clinical Case Reports

ISSN: 2165-7920

Open Access

Mucinous Adenocarcinoma of Minor Salivary Gland: Case Report and Literature Review


Karis Barbosa Guimarães, Bruna Rafaela Martins Dos Santos, Manuel Antonio Gordón-Núñez, Ricardo José De Holanda Vasconcellos, Lincoln Souza and Hébel Cavalcanti Galvão

Mucinous adenocarcinoma (MAC) is a glandular tumor characterized by large pools of extracellular mucin. The tumor can arise as a primary tumor of the major salivary glands. However, its occurrence is exceedingly rare and has only recently been recognized. Only few cases in the major salivary glands have been reported. This report is an additional case of MAC with origin in minor salivary gland at the oral floor. Immunohistochemical analysis of the tumor for cytokeratins 7, 8, 10, 13, 14, 18 e 20, vimentin, SMA, CEA, EMA, p53, ki-67 e histochemical analysis for PAS, Alcian blue e mucicarmin was performed. Predominantly, the tumor expressed cytokeratins 7, 18 and 20 that are commonly found in simple epithelia. Therefore, was observed positivity to PAS, Alcian blue and mucicarmin. No other cancer has been detected. The tumor is considered to be a primary mucinous adenocarcinoma, being the twenty-third case in minor salivary gland reported in the literature and the fourth MAC located in the mouth floor.


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