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Case Reports
. 2014 Jun;47(3):298-301.
doi: 10.5090/kjtcs.2014.47.3.298. Epub 2014 Jun 5.

Resection of Intrapericardial Schwannoma Co-Existing with Thymic Follicular Hyperplasia through Sternotomy without Cardiopulmonary Bypass

Jae Ho Chung  1 , Jae Seung Jung  1 , Sung Ho Lee  1 , Kwang Taik Kim  1 , Kanghoon Lee  1 , Seung Hun Lee  1
Affiliations
Case Reports

Resection of Intrapericardial Schwannoma Co-Existing with Thymic Follicular Hyperplasia through Sternotomy without Cardiopulmonary Bypass

Jae Ho Chung et al. Korean J Thorac Cardiovasc Surg. 2014 Jun.

Abstract

A 35-year-old man was admitted to Korea University Anam Hospital for evaluation of intermittent chest pain. Computed tomography of the chest showed enlargement of a previously identified anterior mediastinal mass and also a well-defined, circumscribed mass in the subcarinal area, surrounded by the roof of the left atrium, right pulmonary artery, and the carina. Complete resection of the intrapericardial tumor was performed through median sternotomy without cardiopulmonary bypass. Pathologic examination identified the tumor as schwannoma, of an ancient type, diffusely positive for the S-100 antigen. Unlike other reported cases, grossly, the tumor did not seem to be involved with any nerve.

Keywords: 1. Schwannoma; 2. Mediastinal neoplsms; 3. Pericardium; 4. Sternotomy; 5. Benign neoplasm.

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Figures

Fig. 1
Fig. 1
(A) Constrast enhanced chest computed tomography (CT) and (B) three dimensional CT reconstruction showing the well-demarcated margin of the mass and its location between the posterior wall of the left atrium, right pulmonary artery, and the carina. (C) A diffusely enlarged anterior mediastinal mass was also seen in chest CT.
Fig. 2
Fig. 2
Intraoperative findings. (A) About 2.5×2.5×2 cm in size round tumor was located just posterior to the roof of the left atrium, and between the aorta and the main pulmonary artery. (B) Macroscopic view of the tumor.
Fig. 3
Fig. 3
Histopathologic findings. (A) The spindle cells show palisading arrangement (H&E, ×100). (B) The tumor cells are diffusely and strongly positive for S100 immunohistochemical stain in nucleus and cytoplasm (H&E, ×200).
See this image and copyright information in PMC

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