Partial splenectomy for incidentally detected non-ruptured splenic lesions in dogs: 18 cases (2004-2018).
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The objective of this retrospective study was to describe the outcome and incidence of splenic malignancy in 18 dogs undergoing partial splenectomy for incidentally detected, non-ruptured splenic lesions. Incidence of splenic malignancy in the present study was 5.6% [95% confidence interval (CI): 0.14% to 27.65%]. Median diameter of splenic nodules was 2 cm (range: 1.5 to 4 cm). Splenic hemangiosarcoma was diagnosed in 1 dog, while the remaining 17 dogs had benign splenic lesions. There was a higher incidence of non-splenic malignancy (50%) than splenic malignancy (5.6%) in the study population. Overall median survival time after surgery was 300 days (range: 4 to 1332 days). Median survival time in dogs with malignant disease (splenic and non-splenic) was 67 days (range: 4 to 425 days) and for non-malignant disease was 727 days (range: 8 to 1332 days). In conclusion, partial splenectomy may be appropriate for small, incidental non-ruptured splenic lesions in dogs.