What is the role of ultrasonography in the workup of pleomorphic sarcoma (malignant fibrous histiocytoma) of soft tissue?

Updated: Nov 07, 2018
  • Author: Gregory Scott Stacy, MD; Chief Editor: Felix S Chew, MD, MBA, MEd  more...
  • Print
Answer

Answer

Sonography typically reveals a well-defined heterogeneous mass that contains hyperechoic areas of cellularity and hypoechoic regions of necrosis. The appearance of tumors on ultrasound is nonspecific; however, sonography may be used to evaluate tumor volume. Retroperitoneal tumors tend to appear as hypoechoic solid masses with scattered regions of heterogeneity. [16]

(See the images below.)

Ultrasound image demonstrates a predominantly hypo Ultrasound image demonstrates a predominantly hypoechoic mass in the thigh representing a malignant fibrous histiocytoma. Regions of hyperechogenicity likely correspond to cellular components of the tumor.
Ultrasound image demonstrates another example of a Ultrasound image demonstrates another example of a predominantly hypoechoic mass within the patient's thigh, proven to be a malignant fibrous histiocytoma.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!