Original ArticlesInflammatory pseudotumors of the lung
Section snippets
Patients and data collection
Between February 1946 and September 1993, 56,400 general thoracic surgical procedures were performed at our institution. These operations consisted of pulmonary, esophageal, and chest wall resections, as well as mediastionoscopies and video-assisted procedures. Twenty-three patients (0.04%) had resection of an inflammatory pseudotumor of the lung. All pathologic slides were re-reviewed by a single pathologist and were confirmed to be inflammatory pseudotumor. The records were reviewed for age,
Results
Pneumonectomy was performed in 6 patients, bilobectomy in 1, lobectomy in 6, segmentectomy in 1, wedge resection in 7, and chest wall resection in 2. All patients had mediastinal and intrapulmonary lymph node resection, and no nodes were involved with pseudotumor in any patient. Complete resection of the mass was accomplished in 18 patients (78%). In 5 patients, who underwent incomplete resection, residual tumor was left on the chest wall in 2, in the lung in 2, and on the superior vena cava in
Comment
Because of the numerous synonyms used for inflammatory pseudotumor of the lung (plasma cell granuloma, xanthoma, fibroxanthoma, histiocytoma, plasmacytoma, solitary mast cell tumor, and pseudoneoplastic pneumonia of the lung) little is known about its true incidence, natural history, and response to different treatments. To ensure that all patients in our series had inflammatory pseudotumors, all pathologic slides were rereviewed by a single pathologist (A.G.N.). The classic histiologic
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