title: Ultrasonographic analysis of subcutaneous angiolipoma.
abstract: OBJECTIVE
  To describe and analyze the ultrasonographic appearance of subcutaneous angiolipoma in pathology-proven cases.
  
  
  METHODS
  We retrospectively searched the January 2004 to May 2011 surgical pathology database for cases of pathology-proven angiolipoma. The ultrasonographic findings were analyzed for angiolipoma size, shape, margin, echo texture, echogenicity, acoustic enhancement, calcifications, and color Doppler flow.
  
  
  RESULTS
  Of 31 angiolipomas, 19 lesions occurred in an upper extremity, one in a lower extremity, nine in the chest and abdominal wall, and two in the back. The mean tumor size was 17.7 mm. Twenty-five cases (80%) appeared as oval mass and all tumors had well-defined margins. All cases showed hyperechoic; 14 (45%), homogeneous; 17 (55%), heterogeneous. Seven cases (23%) showed blood flow in the mass. Acoustic enhancement and calcification was not shown in any cases. A correct preoperative diagnosis was made in three cases (10%) by ultrasonography.
  
  
  CONCLUSIONS
  Most subcutaneous angiolipomas are oval-shaped, have well-defined margins, and hyperechoic appearance on ultrasonography. Although color Doppler flow of subcutaneous angiolipoma is not seen in many cases, it may helpful in differentiating angiolipoma from ordinary subcutaneous lipoma.
authors: Department of Radiology, University of Ulsan College of Medicine, Ulsan University Hospital, 290-3 Jeonha-dong, Dong-gu, Ulsan, 682-714, Korea.
authors: Minseo
authors: M
authors: Bang
authors: Byeong Seong
authors: BS
authors: Kang
authors: Jae Cheol
authors: JC
authors: Hwang
authors: Young Cheol
authors: YC
authors: Weon
authors: Seong Hoon
authors: SH
authors: Choi
authors: Shang Hun
authors: SH
authors: Shin
authors: Woon Jung
authors: WJ
authors: Kwon
authors: Cheol Mog
authors: CM
authors: Hwang
authors: Sun Young
authors: SY
authors: Lee
mesh_terms: D000328:Adult; D018206:Angiolipoma / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D019042:Muscle Neoplasms / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014463:Ultrasonography / Q000379:methods*