Eosinophilic Granuloma Complex in cats

Eosinophilic granuloma complex in cats is a term used to describe skin lesions which occur in the form of eosinophilic plaques, eosinophilic granulomas or indolent ulcers. 

Indolent ulcers are most commonly seen on the upper lip, they have a characteristic appearance and if left untreated can deform the appearance of the lip. 


The underlying cause for eosinophilic lesions is unknown although there have been studies to suggest allergies may be an underlying cause for these lesions to develop. 


Diagnosis may require samples to be taken (either fine needle aspirate or a biopsy), this tissue will be sent away to the lab for evaluation. Although some lesions have a very typical appearance and your vet may be able to treat without taking samples.  


Eosinophilic plaques, eosinophilic granulomas or indolent ulcers can generally all be treated with corticosteroids. Generally they respond well to this treatment although these lesions are recurrent so your pet may need on and off treatment for these lesions. As the underlying cause may be related to allergies, it is important to always ensure your pets parasite treatment is up to date and your vet may discuss specific hypoallergenic diets that may be suitable for your cat. 


Always consult a veterinary surgeon if you suspect your cat may have an eosinophilic lesion.