Figure 1.

Signs of injury. A) A black sewing thread connected with a sewing needle (not shown in this panel as it is completely in the heart and chest wall) was found deep in the middle of the front chest with erythema around. B) Anteroposterior and C) lateral chest radiograms showed a linear-shaped metallic density within the cardiac silhouette. D) Sagittal and E) cross-sectional CT images showed a foreign body penetrate the heart through the junction of the right ventricle and the atrium. F) Intraoperative view visualizing the needle (arrow).