Osteosarcoma CT

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohammadmain Rezazadehsaatlou[2].

Osteosarcoma Microchapters
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Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Osteosarcoma from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Staging
History and Symptoms
Physical Examination
Laboratory Findings
Biopsy
X Ray
CT
MRI
Other Imaging Findings
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Overview

CT scan in osteosarcoma may be helpful in biopsy and staging. CT scan adds little to plain radiography and MRI in direct assessment of the tumor.

CT

• CT scan in osteosarcoma may be helpful in biopsy and staging.
• CT scan adds little to plain radiography and MRI in direct assessment of the tumor.
• The exception to this rule is predominantly lytic lesions in which small amounts of mineralised material may be inapparent on both plain film and MRI.
• CT scan is used to:

• Observe the extent of the bone tumor.
• Observe if the tumor has spread into nearby tissues.
• Guide a biopsy needle to the tumor (CT-guided biopsy).
• Observe if the bone cancer has spread to the lung (metastasis).