Computed tomographic features of presumed normal palatine tonsils in 140 dogs.

Authors

N Leong, R Drees, H Dirrig

Published in

The Journal of small animal practice. Apr 12, 2026. Epub Apr 12, 2026.

Abstract

The purpose of this retrospective study was to describe the CT features of presumed normal canine palatine tonsils.
Pre- and post-contrast head CT studies of 140 dogs without tonsillar disease were included. Subjective evaluation of palatine tonsils included contrast enhancement pattern, differentiation from surrounding soft tissues and presence of gas or mineral within the tonsillar fossae. Quantitative measurements included pre- and post-contrast attenuation, width, height and length. Relationships between palatine tonsillar size and age, bodyweight, brachycephalic versus normocephalic conformation and concurrent regional disease were investigated. Bodyweight-based ranges (≤10.0 kg, 10.1 to 25.0 kg and >25.0 kg) for tonsillar sizes were established to assess differences in tonsillar size across weight categories.
Palatine tonsils were identified on CT examination in all dogs. 52.9% palatine tonsils were poorly differentiated from adjacent soft tissues in post-contrast series, 86.1% tonsillar fossae contained gas and 7.9% contained mineral. Mean palatine tonsillar width was 6.9 mm (SD 2.2 mm), height 6.5 mm (SD 2.0 mm) and length 19.1 mm (SD 4.5 mm). Median attenuation pre-contrast was 50.8 HU (range 22.6 to 82.1 HU), significantly increasing to 89.4 HU post-contrast (range 49.7 to 128.0 HU). Tonsillar size was negatively correlated with age and positively correlated with bodyweight. There were statistically significant increases in tonsillar size with each ascending bodyweight range. No statistically significant size differences were found between brachycephalic and normocephalic breeds, nor between dogs with or without concurrent regional disease.
These findings may serve as informative references for evaluating palatine tonsils on CT examinations in healthy dogs and provide comparisons for assessing tonsillar pathology.

PMID:
41968060
Bibliographic data and abstract were imported from PubMed on 13 Apr 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.