Amy M. Young, BE, Matthew R. Danter, MD, James S. Lewis, MD, Ben R

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Presentation transcript:

Right Ventricular Hemangioma in the Outflow Tract: A Rare Cause of Obstruction Amy M. Young, BE, Matthew R. Danter, MD, James S. Lewis, MD, Ben R. Barton, MD The Annals of Thoracic Surgery Volume 103, Issue 3, Pages e245-e246 (March 2017) DOI: 10.1016/j.athoracsur.2016.08.030 Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 Preoperative computed tomographic Angiography. The right ventricular tumor measured 3.0 × 2.6 cm and was located on the posteromedial aspect of the subpulmonic region of the right ventricular outflow tract. The Annals of Thoracic Surgery 2017 103, e245-e246DOI: (10.1016/j.athoracsur.2016.08.030) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 Intraoperative image of the encapsulated cardiac hemangioma showing its location relative to the right ventricular outflow tract. The Annals of Thoracic Surgery 2017 103, e245-e246DOI: (10.1016/j.athoracsur.2016.08.030) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Histologic and immunohistochemical features of the tumor. (A) Low-power view shows large vascular spaces and more solid areas with small capillaries. There is a portion of residual cardiac muscle in the upper right corner. (×2.) (B) Medium-power view shows that the vascular spaces are lined by an attenuated endothelial lining with cells with small nuclei. Many of the spaces contain blood and fibrin, and the intervening areas of capillary proliferation have blood and scattered chronic inflammatory cells. (×4.) (C) High-power view of the capillary rich area shows plump cells lining the vascular spaces. (×20.) (D) Cluster of differentiation 31 (CD31) immunohistochemistry shows strong staining of the lining cells of the large spaces and also of the plump cells in the capillary rich areas. (×20.) The Annals of Thoracic Surgery 2017 103, e245-e246DOI: (10.1016/j.athoracsur.2016.08.030) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions