title: Analysis by high resolution ultrasound of superficial lymph nodes: anatomical, morphological and structural variations.
abstract: OBJECTIVE
  To analyze morphostructural variations of benign lymph nodes, 49 cervical , 49 axillary and 49 inguinal lymph nodes had been studied in many healthy subjects.
  
  
  METHODS
  Longitudinal and transverse diameters, longitudinal to transverse axis ratio, hilum and cortex thickness, hilar to cortical thickness ratio, presence and echogenicity of hilum, and presence of cortical focal thickening had been evaluated.
  
  
  RESULTS
  Some parameters were statistically significant such as for the presence of hilum that was identified in 100% of axillary and inguinal lymph nodes.
  
  
  CONCLUSIONS
  Morphostructural differences must be considered in order to avoid the possible misinterpretation between the physiologic and pathologic LN.
authors.affiliation: Department of Medicine, Radiology, University of Padova, Padua, Italy. Electronic address: roberto.stramare@unipd.it.
authors.forename: Stramare
authors.initials: S
authors.lastname: Roberto
authors.affiliation: Department of Medicine, Radiology, University of Padova, Padua, Italy.
authors.forename: Beltrame
authors.initials: B
authors.lastname: Valeria
authors.affiliation: Department of Medicine, Radiology, University of Padova, Padua, Italy.
authors.forename: Del Villano
authors.initials: del V
authors.lastname: Roberto
authors.affiliation: Department of Medicine, Radiology, University of Padova, Padua, Italy.
authors.forename: Motta
authors.initials: M
authors.lastname: Raffaella
authors.affiliation: Department of Cardiac, Thoracic and Vascular Sciences, University of Padova, Padua, Italy.
authors.forename: Frigo Anna
authors.initials: FA
authors.lastname: Chiara
authors.affiliation: Department of Medicine, Radiology, University of Padova, Padua, Italy.
authors.forename: Rubaltelli
authors.initials: R
authors.lastname: Leopoldo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001365:Axilla; D005260:Female; D006119:Groin; D064368:Healthy Volunteers; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging*; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D009333:Neck; D014463:Ultrasonography; D055815:Young Adult
keywords: Cortical thickening; Hilum; Lymph node; Metastases; Ultrasound; Variations