title: Ultrasonography of soft tissue "oops lesions".
abstract: In this article, I would like to define "oops lesions" as soft tissue mass-like lesions that involve surprise or embarrassment for radiologists following the final diagnosis. Examples of "oops lesions" include malignant tumors that appear benign, malignancy-mimicking benign tumors, incorrect identification of epidermal inclusion cysts, and soft tissue pseudotumors. Ultrasonography (US) findings are very helpful in the diagnosis of soft tissue tumors; however, the diagnosis of soft tissue tumors on the basis of US findings alone has some limitations. Therefore, clinical findings, laboratory data, findings from additional imaging modalities, and demographic data of patients should be considered together with US findings.
authors: Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
authors: Hye Won
authors: 0000-0001-5597-8143
authors: HW
authors: Chung
authors: Department of Radiology, Yeungnam University College of Medicine, Daegu, Korea.
authors: Kil-Ho
authors: 0000-0002-5782-6028
authors: KH
authors: Cho
keywords: Musculoskeletal diseases; Soft tissue neoplasms; Ultrasonography