Abstract
In many salivary acinic cell adenocarcinomas, well-differentiated serous acinar-type cells may be few and inconspicuous. In these cases it may be difficult to distinguish acinic cell adenocarcinoma from other types of salivary gland neoplasms such as cystadenocarcinoma. The usefulness of antisalivary amylase antibody immunohistochemical staining as a diagnostic aid was assessed on paraffin-embedded tissue sections from 27 typical acinic cell adenocarcinomas. Only 4 of 27 tumors showed reactivity in tumor cells. We conclude that anti-amylase antibody is of limited value in the recognition of acinic cell adenocarcinoma when light morphologic features are insufficient for diagnosis.
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