There are six classifications of equine sarcoids described below. You should always seek veterinary advice if you suspect that your horse has a sarcoid.
Occult sarcoids
Hairless areas of skin which are often circular and may be mistaken for rubs in their early development. They are usually seen on the nose, armpit, inner thigh or groin area.
Verrucous sarcoids
These are warty and usually grey. They cause the skin to crack and flake. They many appear singularly or in groups which can merge.
Nodular sarcoids
Firm round nodules which are most commopnly seen in the armpit, inner thigh/groin and under the skin of the eyelids. They are variable in size and again can be singular or in mukltiples. They can be covered by normal skin or can be ulcerative. They tent to be wel attached to the overlying skin but can be mobile under the skin surface.
Fibroblastic sarcoids
Quick growing fleshy masses that often have ulcerated surfaces and are prone to bleeding. These often develop at the site of a wound and have a proud flesh appearance. Fibroblastic sarcoids often develop rapidly from other types of sarcoids.
Malevolent sarcoids
This rapidly growing and aggressive sarcoid can spread over a large area. They appear like ulcerative nodular-like lesions which cluster together in large bundles. Sometimes there are no treatment options for this type of sarcoid if they affect the horses work or quality of life, however malevolent sarcoids are rare.
Mixed sarcoids
Individual sarcoids may contain characteristics of several types. They often change over time,
