# Periocular fibrosarcoma with lipogranulomatous conjunctivitis in a cat

## TL;DR

A cat with long-term eye inflammation later developed a rare eyelid tumor called fibrosarcoma, highlighting the need for vigilance in such cases.

## Contribution

This is the first reported case of a cat with chronic lipogranulomatous conjunctivitis later developing unilateral eyelid fibrosarcoma.

## Key findings

- Chronic bilateral LGC in a cat was later complicated by unilateral eyelid fibrosarcoma.
- Fibrosarcoma should be considered as a differential diagnosis in cats with chronic LGC and new eyelid masses.
- Histopathology confirmed the diagnosis of fibrosarcoma following surgical intervention.

## Abstract

A 9‐year‐old, female spayed domestic short‐haired cat was presented with a 4‐year history of bilateral lipogranulomatous conjunctivitis (LGC), which was confirmed via histopathology. Thirteen months following the initial biopsy, the cat was presented with a rapidly progressive mass lesion of the palpebral conjunctiva of the right eye. A surgical debulking, followed 1 month later by exenteration after marked regrowth of the mass confirmed fibrosarcoma. This case report is the first to describe a cat with chronic bilateral LGC that later developed a unilateral fibrosarcoma within the eyelid tissue of the right eye. Fibrosarcoma should be considered a differential in any cat with chronic LGC that develops a rapidly progressive mass in the eyelid.