[Ultrasound studies for the demarcation of the spatial extension of teat stenosis and other teat changes in cattle].

Under field conditions in 63 dairy cows a stenosis of the teat was diagnosed in 60 cases and other teat anomalies were found in 5 animals. The results of a traditional clinical examination were compared with results obtained by diagnostic with a portable, 5 MHz linear scanner. The pictures found in unaltered teats were compared with pathological findings. As far as the localisation and extension of teat stenoses or lacerations of the mucosa in the teat is concerned, the accuracy of the diagnosis was improved by ultrasonography. Diagnostic ultrasound can be recommended as an additional diagnostic tool in certain cases of a stenosis or other anomalies of the teat in dairy cows.