We report CT and MRI bindings in two cases of acinic cell carcinoma of the parotid glands which behaved differently on T2-weighted images. Differences in signal intensities were considered to reflect the histology of the lesion, although a histological diagnosis could not be made on imaging grounds alone.
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: Acinic cell carcinoma (ACC) is a rare lung neoplasm that can affect both children and adults as a parenchymal or endobronchial mass. It is histologically similar to this kind of tumor described in salivary glands, but with a different immunophenotype. In general, it poses a reduced degree of malignancy, with indolent growth and a favorable prognosis, with exceptionally rare cases associated with recurring disease or lymph node metastases.
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