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Selected Publication:

Type of publication: Doctoral Thesis
Type of document:

Year: 2005

Authors: Kraus, D

Title: Sonographie und ergänzende Pathohistologie der Milz des deutschen Schäferhundes und seiner Mischlinge.

Source: Dissertation, Vet. Med. Univ. Wien, pp. 63.

Advisor(s):

Gumpenberger Michaela


Abstract:
Between December 2001 and March 2004 a total of 100 pure breed German Shepard dogs and 14 mix breed German Shepards received abdominal ultrasonography. 22 were female, 27 spayed female, 53 male and 12 castrated males. The dogs were between 6 months and 14,6 years old, in 4 animals the age was unknown. During a short physical examination the spleen was evaluated and documented if palpable or not. In sonography the size and parenchymal texture of the spleen was visualized. In 20 dogs additional pathohistological examination of the spleen was performed. 17 of the 100 pure breed German Shepard dogs received sonographic and pathohistological examination of their spleens at the clinic of radiology between January 2002 and November 2004 and were selected retrospectively. In the present study the sonographic findings in homogenity and in echogenity of the spleen as well as a detailed description of all pathological changes were listed in a table. In the following the sonographic findings were compared with the pathohistologic diagnoses. The results are documented by a large number of figures. In conclusion it can be said that an experienced examiner may estimate the size of the spleen realistically while the absolute size cannot be measured. When comparing the sonographic and histopathologic findings conformity can be found in 57% (21/37) of the cases. Although this seems to be a good correlation this is not satisfying for correct prognosis. There was a tendency to assess inhomogenous nodules with cystic parts as malignant, although some of these changes were proved to be benign pathohistologically. This demonstrated that it is impossible to predict malignancy sonographically and without biopsy. Finally older patients showed an increased number of neoplasias without sex predisposition.

Keywords:
German sheperd dog / spleen / sonography / pathohistology


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