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  • Title: Inflammatory pseudotumor of the lung in adults.
    Author: Melloni G, Carretta A, Ciriaco P, Arrigoni G, Fieschi S, Rizzo N, Bonacina E, Augello G, Belloni PA, Zannini P.
    Journal: Ann Thorac Surg; 2005 Feb; 79(2):426-32. PubMed ID: 15680808.
    Abstract:
    BACKGROUND: Thoracic surgeons have limited experience of inflammatory pseudotumors of the lung owing to their rare occurrence in routine clinical practice. METHODS: We retrospectively investigated the clinicopathologic features of 18 patients with inflammatory pseudotumor of the lung observed between 1992 and 2002. RESULTS: There were 13 men and 5 women. Median age was 57 years. Eight patients (44%) were symptomatic. Computed tomographic scan showed a solitary nodule (< or =3 cm) in 12 patients, bilateral nodules in 1, and a mass in 5. Two patients had undergone prior incomplete resections. Lobectomy was performed in 5 patients, bilobectomy in 1, segmentectomy in 1, and wedge resection in 11. Complete resection was achieved in 13 patients (72%). There was no operative mortality. Follow-up was complete in all patients (range, 13 to 134 months; median, 63 months). Overall 3-year and 5-year survival rates were 82% and 74%, respectively. Thirteen patients are currently alive with no evidence of disease, 1 is alive with disease, 1 died of unrelated causes, and 3 had a relapse and died. Completeness of resection and lesion size less than or equal to 3 cm were associated with a better survival (p < 0.001 and p = 0.007, respectively). Multivariate Cox analysis confirmed the association between completeness of resection and better survival, which is independent of other clinicopathologic variables (p = 0.02). CONCLUSIONS: This series shows that a significant number of patients with inflammatory pseudotumor of the lung have a poor prognosis and confirms the need for radical resection in the treatment of this unusual entity.
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