Sonography can be a primary diagnostic technique for evaluating nasal fracture in children. It inflicts no radiation, provides various imaging planes without positional change, and can be used to evaluate the cartilaginous septum. Potential pitfalls are the nasofrontal suture, the junction between the nasal bone and the pyriform aperture of the maxilla, the vascular groove, and the presence of an old fracture. CT can be used in addition to sonography in cases of suspected complex facial bone trauma.
The malignancy rate of AUS/FLUS nodules in our study cohort was higher than previously reported. Nodules with suspicious features on ultrasound had a higher malignancy rate than did those with indeterminate features on ultrasound. The malignancy rate differed according to histologic subcategory; therefore, management of AUS/FLUS nodules should be tailored according to histologic subcategory.
The quantitative sonographic measurements had an excellent diagnostic performance for lateral epicondylitis, as well as good or excellent interreader agreement. A common extensor tendon cross-section area greater than or equal to 32 mm(2) and a thickness of 4.2 mm correlated well with the presence of lateral epicondylitis. However, further prospective study is necessary to determine whether quantitative ultrasound with these cutoff values can improve the accuracy of the diagnosis of lateral epicondylitis.
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