J Korean Radiol Soc.
1998 May;38(5):907-911. 10.3348/jkrs.1998.38.5.907.
Usefulness of Sonography in Detection of Local Recurrent Soft Tissue Tumors
- Affiliations
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- 1Department of Diagnostic Radiology, Korea Cancer Center Hospital.
- KMID: 1831868
- DOI: http://doi.org/10.3348/jkrs.1998.38.5.907
Abstract
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PURPOSE: To evaluate the usefulness of ultrasonography in the diagnosis of local recurrent soft tissue tumors.
MATERIALS AND METHODS
We retrospectively analysed the results of 113 sonographic examinations in 102 patients (38males, 64 females) after surgical treatment of soft tissue tumors (82 malignancies, 20 benignancies) during thelast five years. Follow-up included physical and sonographic examinations using a 5-10MHz transducer every twomonths. In 17 cases, MR images were obtained The criterion for local recurrence was discrete mass, and size,shape, margin, echogenicity, and homogeneity were also analysed. Forty-one patients underwent surgery.
RESULTS
Among 113 cases, 41 local recurrences were proven by surgery and histological analysis; well-defined, ovoid,homogeneous hypoechoic masses of various sizes were apparent. Sonographic sensitivity and specificity were both97%. MR sensitivity and specificity were 83% and 100% respectively, but in most cases in which MR had been usedthe masses were greater than 3cm in diameter. Two cases were false positive; these were thought to be granulomas,but were shown during follow-up lasting 36 and 14 months, respectively, to be unchanged hypoechoic nodules. Onecase was false negative.
CONCLUSION
For the diagnosis of local recurrent soft tissue tumors, ultrasonography isvery useful. For early detcction, it is superior to MR imaging.
