Use of metronomic chemotherapy in the management of a cat with abdominal haemangiosarcoma
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Updated: Feb 6, 2026

Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task
Published on: September 21, 2017
Katrina Yee-Ka Cheng1, Mark Krockenberger2, Peter Bennett1
1University Teaching Veterinary Hospital Sydney, Sydney School of Veterinary Science, Faculty of Science, University of Sydney, NSW, Australia.
Case Summary:
A 12-year-old entire domestic shorthair was evaluated for a 5 week history of intermittent vomiting, loss of appetite and weight loss. Abdominal ultrasound revealed a multi-lobulated heterogeneous mass adjacent to the mesenteric vessels. Cytology from fine-needle aspirates was non-diagnostic. Histopathology from a Tru-cut biopsy was consistent with haemangiosarcoma. The cat was treated with metronomic chemotherapy using oral cyclophosphamide. The cat remained clinically well and was euthanased 10 months after diagnosis owing to development of a haemoabdomen.
Relevance And Novel Information:
Prognosis of feline abdominal haemangiosarcoma is generally poor and limited information on treatment is available in the veterinary literature. The use of metronomic chemotherapy with oral cyclophosphamide in this cat provided a 10 month period of good-quality life.
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