Update on feline soft tissue sarcomas

Background : Soft tissue sarcomas (STS) are common in cats, with varying levels of aggressiveness – some are easily removed surgically, while others are harder to treat. Recent research suggests that adjuvant radiotherapy can offer effective long‐term control when microscopic disease remains. Feline injection‐site sarcomas (FISS) highlight the unique nature of feline cancers. While prognosis was once difficult, a new histological grading system has been proposed to help assess these tumours. Aim of the article : This article will examine the importance of feline STS and the complications FISS introduces. It will examine the long‐standing histological grading system routinely applied to canine STS and its origin as a system for human STS. It will then discuss the proposed histological grading system for feline STS and possible future directions research into and the prognostication these tumours may take.