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Updated: Jul 19, 2026

Thoracoscopic Extended Right Middle Plus Lower Sleeve Lobectomy for Non-Small-Cell Lung Cancer
Published on: February 27, 2026
Successfully treated massive pulmonary thromboembolism and thrombus in the right atrium due to diffuse malignant
Hiromu Inoue1, Takanori Yasu, Koji Kawahito
1The First Department of Integrated Medicine, Omiya Medical Center, Jichi Medical School, Saitama.
Abstract:
A 40-year-old man presented with massive pulmonary embolism related to diffuse large B cell lymphoma. His hemodynamic state worsened rapidly to shock after sudden onset of dyspnea. Echocardiography and thoracic computed tomography indicated pulmonary thromboembolism due to deep venous thromboembolism, associated with a mass in the anterior mediastinum and a 5 x 8 cm mass in the left pelvis compressing the left femoral vein. He underwent emergent surgery to remove a huge thrombus from the right atrium through the bilateral pulmonary arteries. Soon after this surgery, his hemodynamic state recovered and excision of the left cervical lymph node revealed diffuse large B cell lymphoma. Venous compression by the lymphoma mass had caused hemostasis and thrombus formation in the present case.
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