Calvarial Hyperostosis Syndrome in an American Pit Bull Terrier

Calvarial hyperostosis syndrome (CHS), which has been recently defined in juvenile dogs, is a rare, non-neoplastic, proliferative bone disease characterized by the swelling of the skull. Until recently, it was mostly reported in young Bullmastiffs with a sexual preference for male dogs. The objective of this study was to describe the clinical and pathological aspects of the condition as a contribution to literature due to its rarity in dogs. The paper presents the first reported case of Calvarial hyperostosis in turkey. A four-month-old female American Pit bull terrier was presented to the veterinary physician with the complaints of painful swelling on the head, loss of appetite, lethargy and fever. Radiograph of the skull revealed diffuse thickening of the frontal and parietal bones and markedly increased bone opacity, and magnetic resonance imaging (MRI) scans revealed increased diploe thickness in all sequences. The preliminary clinical diagnosis of calvarial hyperostosis was confirmed by histopathology which revealed the presence of both immature woven bone and mature bone trabeculae separated by prominent basophilic cementing lines. The lesion is self-limiting, and most cases show spontaneous regression in few months, but in this case the patient was monitored until one year of age and no regression was seen

Pelvis shape analysis with geometric morphometry in crossbreed cats

In this study, the geometric morphometry of the pelvis of 32 (16 male, 16 female) crossbreed cats was investigated. Pelvis images of cats were obtained by computerized tomography method. Then, these images were modelled and geometric morphometry was applied. Shape variations of the pelvis of all individuals were obtained by principal component analysis. The first principal component (PC1) value explained 18.44% of the total variation. Second principal component (PC2) and third principal component (PC3) values explained 16.84% and 13.60% of the total variation, respectively. The difference in the shape of the pelvis of female and male cats was more pronounced in PC2 and PC3, which differed in the linea terminalis. The centroid size difference in terms of sex in the Procrustes ANOVA result is statistically insignificant (p > 0.05). However, the shape difference was statistically significant (p < 0.001). As a result of discriminant analysis, the pelvis of female and male cats was completely separated from each other. The crista iliaca of males was more lateral than females. Linea terminalis was wider in shape in females. The edge of the acetabulum was higher in shape in males. Regression analysis was performed to see whether the age and weight of the cats had an effect on the centroid size of the cats. Age and weight were not found to be effective on centroid size. The shape variations of the anatomical formations obtained by geometric morphometry method can be revealed, and it can be examined whether there is a shape difference between the groups

The treatment of supracondylar and diaphyseal femoral fractures in cats using intramedullary two-way stacked Kirschner wire application

Femoral fractures in cats are treated using pin and wires, lag screws, Rush pins, intramedullary threaded pins, interlocking pins, clamp rod internal fixators, and plates or plate-rods. In this study, 14 cats brought to the surgery clinic between the years 2010 and 2015 for fracture, due to either a road traffic accident or falling from a height, were evaluated. Following clinical and radiological examination of the cases, the type and location of the fracture, details of the applied fixation method, and postoperative clinical and radiological results were assessed. Localization of the fractures was as follows: 4 comminuted diaphyseal (1 segmental), 6 comminuted distal, and 4 uncomplicated distal transversal fractures. All fractures were closed. Following intramedullary positioning of the pins, rigid stabilization was observed in the fracture line. In the case of the segmental fracture, better stabilization was achieved when the medullary canal was completely filled. The patients were able to use their extremities 3-5 days after surgery and started walking normally from postoperative day 10. Functional healing was seen to improve gradually. Radiographic examination revealed sufficient calli to have formed between days 32 and 44. Complete healing and return to function with no complications was recorded in all the cases

Examination of Shape Variation of the Skull in British Shorthair, Scottish Fold, and Van Cats

A variety of skull shapes are frequently used for discrimination between animal species, breeds, and sexes. In this study, skulls of three different breeds of cats were examined by the geometric morphometric method, with the aim of revealing skull shape differences. For this purpose, 27 cats (6 British Shorthair, 7 Scottish Fold, and 14 Van cats) were used. The skulls of cats were modeled by computed tomography. Geometric morphometrics was applied using dorsal (8 landmarks, 63 semilandmarks) and lateral (8 landmarks, 63 semilandmarks) skull projections on these models. Centroid size differences between the breeds were statistically insignificant. However, the differences in shape were statistically significant for both the dorsal view and lateral view. Shape variation was less in the British Shorthair than in other breeds. Shape differences generally occurred around the orbit. In the skull of Scottish Folds, the orbit was situated more caudally than in other breeds. The British Shorthair had the largest orbital ring. In dorsal view, the Scottish Fold had the largest orbital diameter. The orbital ring of Van cats was smallest in both dorsal and lateral views. In the canonical variate analysis, it was seen that the breeds were separated from each other. The shape difference in the skull between different cat breeds could be revealed by geometric morphometrics. The results of this study provide useful information for taxonomy