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  • Title: Aspiration biopsy cytology of benign clear cell ("sugar") tumor of the lung.
    Author: Nguyen GK.
    Journal: Acta Cytol; 1989; 33(4):511-5. PubMed ID: 2750440.
    Abstract:
    Benign clear cell tumor (BCCT) of the lung is an uncommon neoplasm, with about 24 cases reported in the literature. A fine needle aspirate from a histologically and ultrastructurally confirmed BCCT of the lung contained large irregular clusters of polygonal and spindle-shaped benign-appearing cells with vacuolated, granular, periodic-acid-Schiff-positive cytoplasm. Cytologic study of the aspirate suggested a pseudoinflammatory tumor; however, a metastatic renal cell tumor or a primary clear cell or mesenchymal tumor could not be excluded. The histologic, ultrastructural and cytochemical findings are also presented, and the cytologic differential diagnosis of this neoplasm is briefly discussed.
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