HORSES · Condition guide
Sarcoids in horses: what real veterinary cases show
Equine sarcoids are the most common type of skin tumor found in horses. They are benign but can be locally aggressive, often caused by the bovine papillomavirus. These tumors can appear anywhere on the horse's body and vary in appearance, from flat and hairless patches to large, ulcerated growths.
Owners often first notice sarcoids as small lumps or bumps on their horse's skin. Early detection is important because sarcoids can grow and become more difficult to manage over time. Prompt veterinary evaluation can help determine the best course of action to prevent complications.
What vets typically check for
- Physical examination of the skin and identification of suspicious lesions.
- Biopsy of the lesion to confirm diagnosis and rule out other types of tumors.
- Consideration of imaging techniques if deeper tissue involvement is suspected.
- Assessment of the horse's overall health to plan treatment.
- Treatment options may include surgical removal, cryotherapy, or topical treatments.
Not a replacement for veterinary care. Use this to walk into the conversation prepared, not to self-diagnose.
Real cases from the veterinary literature
Peer-reviewed reports our semantic search surfaces for Equine sarcoids. Click into any case for the full abstract — or run a personalised search with your pet's exact details.
- Use of sterile maggots to treat panniculitis in an aged donkey.
The Veterinary record
An aged female donkey developed a serious skin infection called panniculitis after a wound, which didn't improve with standard treatments. Tests showed the presence of resistant bacteria, making the infection difficult to manage. After conventional methods failed, the veterinarian used sterile maggots to help clean the wound. This treatment was successful, and the wound improve
- Successful Treatment of Cutaneous Lupus Erythematosus in a Horse With Tacrolimus Ointment.
Veterinary dermatology · 2026 · France
A 9-year-old male Quarter Horse had a skin problem on his right upper eyelid, which was diagnosed as cutaneous lupus erythematosus, a condition that can cause skin lesions and is often triggered by sunlight. The horse was treated with a special ointment called tacrolimus and wore a mask to protect against UV light. Over the next three years, the treatment worked well, and there
- Long-Term Use of Oclacitinib Maleate for the Management of Pemphigus Foliaceus in a Miniature Donkey.
Veterinary dermatology · 2026 · United States
A 6-year-old miniature donkey was brought in for severe itching, scaling skin, crusty patches, and hair loss. The vet diagnosed her with pemphigus foliaceus, an autoimmune skin condition. For over four years, she was treated with oclacitinib maleate, a medication that helped manage her symptoms, sometimes combined with a low dose of prednisolone. Throughout this time, she showe
- Widespread Osteolysis as an Uncommon Manifestation of Equine Sarcoidosis.
Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association · 2026 · United States
A mature Quarter Horse mare was diagnosed with a rare disease called equine sarcoidosis, which causes inflammation in various parts of the body. In this case, the horse showed signs of bone loss in her legs, which was seen on X-rays. Further tests revealed widespread bone loss throughout her spine and other areas, linked to the inflammation caused by the disease. Unfortunately,
- Use of full-thickness mesh grafts and full-thickness meek micrografts in five horses with ear skin defects caused by trauma or neoplasm resection.
Veterinary surgery : VS · 2026
This study looked at how five horses with skin wounds on their ears, either from injury or surgery to remove tumors, were treated using special skin grafts. The veterinarians took a piece of skin from the horses' chests and prepared it to cover the ear wounds. They used different techniques to attach the grafts securely and kept the area stable while it healed. In all cases, th
- Hemithyroidectomy due to a large, solid follicular thyroid adenoma in a 19-year-old thoroughbred mare.
Journal of equine veterinary science · 2026 · United Kingdom
A 19-year-old thoroughbred mare had a large growth on her thyroid gland, measuring 26 centimeters across, which needed to be surgically removed. She underwent a procedure called hemithyroidectomy, where part of the thyroid gland was taken out. The surgery went well, and there were no long-term problems afterward. Four and a half years later, she is still doing well and thriving
Frequently asked questions
- Are sarcoids contagious to other horses?
- Sarcoids themselves are not contagious, but the bovine papillomavirus, which is associated with sarcoids, can be spread between horses.
- Can sarcoids become cancerous?
- Sarcoids are benign and do not metastasize like malignant tumors, but they can be locally invasive and problematic if not managed.
- What is the best treatment for sarcoids?
- The best treatment depends on the type, size, and location of the sarcoid. Options include surgical removal, cryotherapy, and topical treatments, often determined by a veterinarian.