Document Detail

Ultrasonographic examination of the ventral neck region in cows.
MedLine Citation:
PMID:  8141487     Owner:  NLM     Status:  MEDLINE    
The position, dimensions, and structure of the thyroid gland, the portion of the esophagus in the neck, the cervical lymph nodes, and the major blood vessels of the neck were determined via ultrasonography in cattle. The left and right ventral neck regions of 30 healthy Swiss Braunvieh cows were examined ultrasonographically, using 3.5- and 5.0-MHz linear transducers and a 3.5-MHz convex transducer. The external jugular vein was situated directly beneath the skin in the upper and middle parts of the neck and 2.7 to 6.6 cm from the body surface in the lower part of the neck. In contrast, the common carotid artery was located further from the body surface along the entire ventral neck region; depending on the measuring point, this distance varied from 2.6 to 10.9 cm. The external jugular vein narrowed from caudad to craniad. The diameter of the common carotid artery remained fairly constant along its course in the ventral part of the neck and varied from 0.9 to 1.4 cm. The thyroid gland was identified via ultrasonography caudodorsal to the larynx. It appeared as an echogenic spindle-shaped structure with finely granular echogenic pattern. The esophagus appeared as a band-shaped structure in longitudinal section, and it could be followed to the thoracic inlet. Its width increased from craniad to caudad, and mean +/- SD diameter was 2.9 +/- 0.23 cm. The medulla, hilus, cortex, and capsule of the cervical lymph nodes could be clearly differentiated via ultrasonography. Mean length and width of the left cervical lymph node were 3.0 +/- 0.45 and 1.8 +/- 0.23 cm, respectively.
U Braun; J Föhn; N Pusterla
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of veterinary research     Volume:  55     ISSN:  0002-9645     ISO Abbreviation:  Am. J. Vet. Res.     Publication Date:  1994 Jan 
Date Detail:
Created Date:  1994-04-26     Completed Date:  1994-04-26     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0375011     Medline TA:  Am J Vet Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  14-21     Citation Subset:  IM    
Clinic of Veterinary Internal Medicine, University of Zurich, Switzerland.
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MeSH Terms
Carotid Artery, Common / anatomy & histology,  ultrasonography*
Cattle / anatomy & histology*
Esophagus / anatomy & histology,  ultrasonography*
Jugular Veins / anatomy & histology,  ultrasonography*
Lymph Nodes / anatomy & histology,  ultrasonography
Neck / anatomy & histology,  ultrasonography
Thyroid Gland / anatomy & histology,  ultrasonography*
Ultrasonography / veterinary*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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