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  • Title: Bronchiolo-alveolar carcinoma: a correlative clinical and cytologic study.
    Author: Tao LC, Delarue NC, Sanders D, Weisbrod G.
    Journal: Cancer; 1978 Dec; 42(6):2759-67. PubMed ID: 215296.
    Abstract:
    From 1970 to 1977, 101 patients with bronchiolo-alveolar carcinoma were admitted to the Toronto General Hospital. Cytology preparations from 97 patients were reviewed and analyzed in correlation with biologic behavior of the tumours. The value of cytologic diagnosis was reassessed. It appears that routine cytology methods were of limited value in the investigation of patients with a peripheral solitary tumor and therefore, percutaneous fine needle aspiration with positive results in 92% of cases examined, was the only useful cytologic examination for this type of lesion. For multicentric tumors, routine cytology methods achieved positive results in 87.9% of cases and fine needle aspiration 100%. Based on cytomorphologic features, bronchioloalveolar carcinoma can be subclassified into three types: secretory, nonsecretory and poorly differentiated. In this series, 84% of solitary tumors were secretory or nonsecretory type with favorable prognosis, and 16% of solitary tumors were poorly differentiated type with poor prognosis. 55.2% of multicentric tumors were poorly differentiated type and 77.3% of multicentric tumors showed positive lymph nodes at surgery. Our results demonstrate that patients with multicentric or poorly differentiated tumors had poor prognosis.
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