Which tumor is an unencapsulated, infiltrating tumor composed of a combination of mucous cells interspersed with squamous-like epithelial cells?

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The mucoepidermoid carcinoma is an unencapsulated, infiltrating tumor composed of a combination of mucous cells interspersed with squamous-like epithelial cells called epidermoid cells. Adenoid cystic carcinoma is composed of small, deeply staining, uniform epithelial cells arranged in perforated round to oval islands. Monomorphic adenoma is composed of a uniform pattern of epithelial cells. These tumors do not have the connective tissue-like component seen in a pleomorphic adenoma. Pleomorphic adenoma is an unencapsulated tumor composed of tissue that appears to be a mixture of both epithelium and connective tissue.

Which Tumor Is an Unencapsulated, Infiltrating Tumor Composed of a Combination