Results of surgical resection for patients with thymoma according to World Health Organization histology and Masaoka staging

Objectives: Thymomas are relatively rare tumors. In this study, we investigated the clinical features of patients who underwent surgical resection for thymoma. Patients and methods: This study clinicopathologically evaluated 54 consecutive patients who underwent a surgical resection of thymoma in ou...

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Main Authors: Shinji Shinohara, Takeshi Hanagiri, Tetsuya So, Manabu Yasuda, Masaru Takenaka, Yoshika Nagata, Hidehiko Shimokawa, Makoto Nakagawa, Hidetaka Uramoto, Tomoko So, Fumihiro Tanaka
Format: Article
Language:English
Published: Elsevier 2012-10-01
Series:Asian Journal of Surgery
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S101595841200125X
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author Shinji Shinohara
Takeshi Hanagiri
Tetsuya So
Manabu Yasuda
Masaru Takenaka
Yoshika Nagata
Hidehiko Shimokawa
Makoto Nakagawa
Hidetaka Uramoto
Tomoko So
Fumihiro Tanaka
author_facet Shinji Shinohara
Takeshi Hanagiri
Tetsuya So
Manabu Yasuda
Masaru Takenaka
Yoshika Nagata
Hidehiko Shimokawa
Makoto Nakagawa
Hidetaka Uramoto
Tomoko So
Fumihiro Tanaka
author_sort Shinji Shinohara
collection DOAJ
description Objectives: Thymomas are relatively rare tumors. In this study, we investigated the clinical features of patients who underwent surgical resection for thymoma. Patients and methods: This study clinicopathologically evaluated 54 consecutive patients who underwent a surgical resection of thymoma in our department between 1994 and 2006. Results: A complete resection was performed in 52 patients, while two patients underwent an incomplete resection due to pleural dissemination. Combined resection with adjacent organs was performed for the lung (n=6), pericardium (n=5), and large vessels (brachiocephalic vein in three, superior vena cava in two). The concomitant autoimmune diseases were observed in 20 patients (37%), and they included myasthenia gravis in 17 patients, macroglobulinemia in one, pemphigus vulgaris in one, and stiff person syndrome in one patient. The histologic types of the World Health Organization classification diagnosed as type A in four patients, type AB in 14, type B1 in eight, type B2 in 15, and type B3 in 11. There were 27, 17, eight, and two patients with Masaoka stages I, II, III, and IV, respectively. Four patients died, and the causes of death included recurrence of thymoma in two, gastric carcinoma in one, and respiratory failure due to myasthenia gravis in one patient. The overall survival rate at 10 years was 94.6% in patients with stages I and II disease and 77.1% in patients with stages III and IV disease. Conclusions: Long-term survival can be expected not only for patients at early stages, as well as for patients with stages III and IV disease if surgical resection is completed macroscopically.
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spelling doaj.art-4ebafc3ea898412e9ba532637f9977b92022-12-21T19:28:26ZengElsevierAsian Journal of Surgery1015-95842012-10-0135414414810.1016/j.asjsur.2012.08.005Results of surgical resection for patients with thymoma according to World Health Organization histology and Masaoka stagingShinji ShinoharaTakeshi HanagiriTetsuya SoManabu YasudaMasaru TakenakaYoshika NagataHidehiko ShimokawaMakoto NakagawaHidetaka UramotoTomoko SoFumihiro TanakaObjectives: Thymomas are relatively rare tumors. In this study, we investigated the clinical features of patients who underwent surgical resection for thymoma. Patients and methods: This study clinicopathologically evaluated 54 consecutive patients who underwent a surgical resection of thymoma in our department between 1994 and 2006. Results: A complete resection was performed in 52 patients, while two patients underwent an incomplete resection due to pleural dissemination. Combined resection with adjacent organs was performed for the lung (n=6), pericardium (n=5), and large vessels (brachiocephalic vein in three, superior vena cava in two). The concomitant autoimmune diseases were observed in 20 patients (37%), and they included myasthenia gravis in 17 patients, macroglobulinemia in one, pemphigus vulgaris in one, and stiff person syndrome in one patient. The histologic types of the World Health Organization classification diagnosed as type A in four patients, type AB in 14, type B1 in eight, type B2 in 15, and type B3 in 11. There were 27, 17, eight, and two patients with Masaoka stages I, II, III, and IV, respectively. Four patients died, and the causes of death included recurrence of thymoma in two, gastric carcinoma in one, and respiratory failure due to myasthenia gravis in one patient. The overall survival rate at 10 years was 94.6% in patients with stages I and II disease and 77.1% in patients with stages III and IV disease. Conclusions: Long-term survival can be expected not only for patients at early stages, as well as for patients with stages III and IV disease if surgical resection is completed macroscopically.http://www.sciencedirect.com/science/article/pii/S101595841200125Xautoimmune diseasemediastinal tumorprognosissurgical resectionthymoma
spellingShingle Shinji Shinohara
Takeshi Hanagiri
Tetsuya So
Manabu Yasuda
Masaru Takenaka
Yoshika Nagata
Hidehiko Shimokawa
Makoto Nakagawa
Hidetaka Uramoto
Tomoko So
Fumihiro Tanaka
Results of surgical resection for patients with thymoma according to World Health Organization histology and Masaoka staging
Asian Journal of Surgery
autoimmune disease
mediastinal tumor
prognosis
surgical resection
thymoma
title Results of surgical resection for patients with thymoma according to World Health Organization histology and Masaoka staging
title_full Results of surgical resection for patients with thymoma according to World Health Organization histology and Masaoka staging
title_fullStr Results of surgical resection for patients with thymoma according to World Health Organization histology and Masaoka staging
title_full_unstemmed Results of surgical resection for patients with thymoma according to World Health Organization histology and Masaoka staging
title_short Results of surgical resection for patients with thymoma according to World Health Organization histology and Masaoka staging
title_sort results of surgical resection for patients with thymoma according to world health organization histology and masaoka staging
topic autoimmune disease
mediastinal tumor
prognosis
surgical resection
thymoma
url http://www.sciencedirect.com/science/article/pii/S101595841200125X
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