## Overview Splenic hemangiosarcoma is a malignant tumor of blood-vessel lining cells. It is less common in horses than in dogs but can cause recurrent colic, episodic weakness, and hemoabdomen from spontaneous rupture. Ultrasound shows a splenic mass, and the packed cell volume drops with bleeding. ## Causes Neoplastic. ## Diagnosis Ultrasound, abdominocentesis showing blood, and histopathology. ## Treatment Splenectomy in selected cases. Metastasis is common. Prognosis is poor. ## Recovery and Prognosis Poor. ## Prevention None.
recurrent colic; episodic weakness; hemoabdomen; dropping packed cell volume; large splenic mass on ultrasound
## Overview Splenic hemangiosarcoma is a malignant tumor of blood-vessel lining cells. It is less common in horses than in dogs but can cause recurrent colic, episodic weakness, and hemoabdomen from spontaneous rupture. Ultrasound shows a splenic mass, and the packed cell volume drops with bleeding. ## Causes Neoplastic. ## Diagnosis Ultrasound, abdominocentesis showing blood, and histopathology. ## Treatment Splenectomy in selected cases. Metastasis is common. Prognosis is poor. ## Recovery and Prognosis Poor. ## Prevention None.
recurrent colic; episodic weakness; hemoabdomen; dropping packed cell volume; large splenic mass on ultrasound