39 Malignant Soft-Tissue Masses on Magnetic Resonance

Imaging

CLINICAL IMAGAGINGAN ATLAS OF DIFFERENTIAL DAIGNOSIS

EISENBERG

DR. Muhammad Bin Zulfiqar PGR-FCPS III SIMS/SHL

• Fig B 39-1 Liposarcoma. (A) Sagittal T1-weighted image shows little fat signal in this intermediate-grade lesion. (B) On the T2-weighted image, the tumor has high signal intensity.46

• Fig B 39-2 Malignant fibrous histiocytoma. Axial T2-weighted image shows the lesion to have generally high signal intensity with some areas of inhomogeneity.46

• Fig B 39-3 Synovial sarcoma. T2-weighted coronal image shows a large inhomogeneous mass. Calcifications appear as low-intensity regions in the medial aspect of the mass, while hemorrhage is seen inferiorly.46

• Fig B 39-4 Rhabomyosarcoma. Coronal gradient echo image demonstrates the high signal intensity of this muscle mass.46

• Fig B 39-5 Malignant nerve sheath tumor. T1-weighted contrast image shows peripheral enhancement of the large tumor and adjacent nerve.46