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IRIS è il sistema di gestione integrata dei dati della ricerca (persone, progetti, pubblicazioni, attività) adottato dall'Università degli Studi di Milano.

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Study objective: To evaluate the immediate cytologic assessment during CT-guided fine-needle aspiration cytology (FNAC) in the diagnosis of operable indeterminate solitary pulmonary nodules (SPNs). Design: Prospective randomized study. Patients and methods: Two hundred twenty patients with SPN undergoing CT-guided FNAC were divided into two groups. In the first one (group A, 110 patients), a cytologist assessed the adequacy of the sample obtained immediately, and when the sample was considered inadequate, fine- needle aspiration (FNA) was repeated. In the second group (B, 110 patients), an immediate cytologic examination was not performed, but only a gross assessment by the surgeon. Histologic study of the SPN was possible in 217 cases, whereas three patients were followed up radiologically. Results: Adequate samples were obtained in 100% of group A and 88% of group B (p<0.001). The diagnostic accuracy was 99% in group A and 81% in group B (p<0.001). Group A required a mean of 1.22 FNAs compared with 1.10 in group B (p=0.015). The rate of pneumothorax in the whole series was 24%, and statistically significant differences between the two groups were not detected. Conclusions: Immediate cytologic study significantly increased the adequacy and diagnostic accuracy of CT-guided FNAC of indeterminate SPNs without causing a significant increase of complications.

CT-guided fine-needle aspiration cytology of solitary pulmonary nodules: a prospective, randomized study of immediate cytologic evaluation / L. Santambrogio, M. Nosotti, N. Bellaviti, G. Pavoni, F. Radice, V. Caputo. - In: CHEST. - ISSN 0012-3692. - 112:2(1997 Aug), pp. 423-425.

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