title: High-resolution ultrasonography of primary peripheral soft tissue lymphoma.
abstract: OBJECTIVE
  The purpose of this study was to evaluate the appearance of primary peripheral soft tissue lymphoma on high-resolution ultrasonography.
  
  
  METHODS
  We retrospectively studied the sonograms of 12 patients (5 female and 7 male; age range, 12-90 years; mean, 55 years) with soft tissue lymphoma. All lesions were palpable and in the salivary glands, trunk, upper limb, or lower limb, and the diagnosis was proved by biopsy or open surgery. For each lesion, sonograms were obtained by gray scale and color Doppler ultrasonography.
  
  
  RESULTS
  The gray scale imaging showed relatively homogeneous hypoechogenicity in 11 patients and homogeneous hyperechogenicity in 1 patient. The tumors appeared as big masses in 5 patients, nodal or confluent nodes in 3, small disseminated nodules in 2, a myositis type in 1, and a panniculitis type (homogeneous echogenic infiltrate in a subcutaneous fat layer) in 1.
  
  
  CONCLUSIONS
  In patients with a soft-tissue mass, routine plain radiography and high-resolution ultrasonography including color Doppler ultrasonography are recommended before further evaluation with ultrasonographically guided biopsy.
authors.affiliation: Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Rd, Taipei 11217, Taiwan. hjchiou@vghtpe.gov.tw
authors.forename: Hong-Jen
authors.initials: HJ
authors.lastname: Chiou
authors.forename: Yi-Hong
authors.initials: YH
authors.lastname: Chou
authors.forename: See-Ying
authors.initials: SY
authors.lastname: Chiou
authors.forename: Wei-Ming
authors.initials: WM
authors.lastname: Chen
authors.forename: Winby
authors.initials: W
authors.lastname: Chen
authors.forename: Hsin-Kai
authors.initials: HK
authors.lastname: Wang
authors.forename: Cheng-Yen
authors.initials: CY
authors.lastname: Chang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005121:Extremities / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008223:Lymphoma / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012468:Salivary Gland Neoplasms / Q000000981:diagnostic imaging; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color