Related Experiment Video
Updated: Apr 22, 2026

Modeling Primary Bone Tumors and Bone Metastasis with Solid Tumor Graft Implantation into Bone
Published on: September 9, 2020
An unusual cause of tree-in-bud pattern: pulmonary intravascular tumor embolism caused by chondrosarcoma
Lilia Silva Peixoto1, Paulo Marcos Valiante, Rosana Souza Rodrigues
1Federal University of Rio de Janeiro, Rua Thomaz Cameron, 438. Valparaiso. CEP 25685.120. Petrópolis, Rio De Janeiro, Brazil.
Abstract:
We report the case of a 45-year-old man who initially presented with chondrosarcoma of the left femur that was treated surgically. Follow-up chest computed tomography (CT) performed 3 years later showed multiple small nodules with a tree-in-bud branching pattern and larger elongated opacities with beaded contours. These findings raised the suspicion of intravascular tumor embolism. Pulmonary CT angiography demonstrated intravascular thrombosis and dilated and beaded peripheral pulmonary arteries. The tumoral origin of the thrombus was confirmed by lung biopsy.
More Related Videos
04:25Intratibial Osteosarcoma Cell Injection to Generate Orthotopic Osteosarcoma and Lung Metastasis Mouse Models
Published on: October 28, 2021
04:04Endobronchial Ultrasound-guided Intratumoral Injection of Cisplatin for the Treatment of Isolated Mediastinal Recurrence of Lung Cancer
Published on: February 12, 2017
Related Concept Videos
Pulmonary Embolism I: Introduction
Pulmonary Embolism I: Introduction
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Pulmonary Embolism III: Nursing Management
Venous Thrombosis I: Introduction
Pulmonary Edema II: Pathophysiology