A RARE PRESENTATION OF LUNG METASTASIS IN OSTEOSARCOMA: A RAPIDLY ENLARGING LUNG LESION

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Hidayatti S Samin
Khairil Amir Sayuti
Nurul Ain Mat Idris

Abstract

Osteosarcoma is the most frequent primary malignant mesenchymal bone tumour in children and adolescents. Although the lung is the most common site of its metastasis, to the best of our knowledge, it is infrequent to have hypervascular pulmonary metastasis, particularly in the post-operative period. Herein, we report a case of a 15-year- old boy who presented with a rapidly enlarging lung mass on a background of osteosarcoma of left proximal tibia. The progressively enlarging right lung mass was detected as an opacity on a chest radiograph, three months post-surgical resection of the osteosarcoma. Computed tomography of thorax revealed a contrast-enhancing hypervascular right lung mass. This was complicated with intra-lesional haemorrhage post-biopsy. Histopathological examination (HPE) confirmed metastatic osteosarcoma. We discuss the rarity of this occurrence and its imaging findings.

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Research article
Author Biography

Hidayatti S Samin, Department of Radiology, School of Medical Sciences, Universiti Sains Malaysia, Jalan Raja Perempuan Zainab II, 16150 Kubang Kerian, Kelantan.

Department of Radiology, School of Medical Sciences, Universiti Sains Malaysia, Jalan Raja Perempuan Zainab II, 16150 Kubang Kerian, Kelantan, Malaysia
Department of Radiology, Hospital Raja Perempuan Zainab II, 15586 Kota Bharu, Kelantan, Malaysia