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Fine Needle Aspiration CytologyCT guided, fine needle aspiration cytology of the solitary lung tumor yielded straw colored fluid. The cytologic smears from the aspirate contained only alveolar macrophages. Portions of the aspirate that were sent for bacterial culture yielded no organisms. The resected lung parenchyma contained a circumscribed gray tumor that was 5.0 cm in maximum dimension. The cut surface of the tumor was gray-white, spongy and multicystic. The tumor was sharply demarcated from the adjacent, normal lung parenchyma. It consisted of multiple cystic lined by low cuboidal cells. These spaces were more uniform in size at the periphery of the lesion and more irregularly sized in the central portion of the lesion. The cystic spaces contained alveolar type macrophages.The low cuboidal cells that lined the cystic spaces did not exhibit either nuclear pleomorphism or mitotic activity. |
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Variably sized spaces are
focally lined by low cuboidal cells. The septa contain
spindle cells and amorphous material and cells are
present in the cystic spaces.
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 Figure 2.
(Hematoxylin and Eosin Original Magnification 400X) |
Low cuboidal cells are
focally present on thin septa and alveolar macrophages
are present in the cystic spaces.
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