A retrospective study was undertaken to characterise the biological behaviour of splenic haemangiosarcoma (HSA) in dogs. Metastatic pattern data for 25 dogs with splenic HSA that were presented for clinical signs relating to splenic lesions (eg, abdominal mass and, or, haemoperitoneum) and had undergone necropsy were analysed. Six of 25 dogs with splenic HSA that were presented for abdominal mass/haemoperitoneum had right atrial HSA. Fifteen of 19 (79 per cent dogs) with splenic HSA associated with abdominal mass/hemoperitoneum without right atrial involvement had disease confined to the peritoneal cavity. The most common metastatic sites in these dogs were liver, omentum and mesentery. Extraperitoneal metastases were seen in four of 19 (21 per cent) dogs without right atrial involvement. Analysis of signalment data of dogs in this series and the literature revealed no differences between dogs with disease confined to the peritoneal cavity and dogs with extraperitoneal metastases. The subjectivity of primary site designation, importance of ante mortem identification of individuals with concurrent right atrial involvement, and need for more aggressive therapy directed at intraperitoneal metastases are discussed.
|Original language||English (US)|
|Number of pages||10|
|Journal||Journal of Small Animal Practice|
|State||Published - Dec 1988|