From the case: Sternal osteosarcoma

CT
On axial post con...
Axial C+ arterial phase
On axial post contrast enhanced images there is evidence of a large, well defined, irregular, moderately enhancing soft tissue lesion noted almost completely eroding and replacing the sternum. Few non enhancing necrotic areas are noted within. Few small calcified foci are noted inside. The lesion extends superiorly from manubrium sternum to the xiphisternum. Bilateral costochondral cartilages are also involved. The lesion abuts left brachiocephalic vein, arch of aorta, ascending aorta and right ventricle. However, intervening fat planes are preserved. The lesion anterior invades subcutaneous fat and reaches upto the skin. The lesion measures 14.02cm (superoinferior) x 8.38 cm (transverse) x 5.8cm (anteroposterior).
Modality: CT (C+ arterial phase)

- “ Sternal osteosarcoma is a relatively rare entity. It is seen most often in elderly patients. It is seen to occur as secondary lesions in patients ...”

Used in the following articles:

  • Tumours of the chest wall (differentials) - “ Tumours of the chest wall are varied, some of which are found most often in this region. They can be divided into benign and malignant tumours and...”
  • Osteosarcoma - “ Osteosarcomas are malignant bone forming tumours and the second most common primary bone tumour after multiple myeloma. They account for ~20% of a...”

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