What does a histiocytoma look like?

A small, firm, hairless, dome-shaped lump, usually pink or red and about button-sized, most often on the head, ears, lips or legs of a dog under three. It can grow fast for a few weeks and may ulcerate or bleed before it settles.

Will a histiocytoma go away on its own?

Most do. In young, healthy dogs the whole course, from appearance to disappearance, is typically two to three months as the immune system clears it. Vets usually recommend watching it rather than removing it.

Why does the vet still want to test it?

Because a histiocytoma can look like a mast cell tumor, which is not benign. A quick needle aspirate under the microscope tells them apart. Any lump that has not started shrinking by three months, or appears on an older dog, should be re-checked.

What did the vet in this story use?

Dr. Kathleen Kenyon DVM, a Fresno-area veterinarian who used Nzymes in her practice, had a white German Shepherd with a quarter-sized histiocytoma on its lip try Antioxidant Treats and Ox-E Drops sprayed on the spot five times a day. She reported the tumor was gone a week later. Ox-E Mineral Mist is the same 2% strength, ready to spray.

Histiocytoma in Dogs: The Button Tumor

What a histiocytoma is

A common, benign skin tumor of young dogs, made of a type of immune cell in the skin called a Langerhans cell. It shows up as a small, firm, hairless, dome-shaped lump, pink or red, often described as a button, most often on the head, ears, lips or legs. The large majority appear in dogs under three or four years old, though any age is possible.¹ In its first one to four weeks it can grow quickly, and in that stage it may ulcerate, bleed or pick up a surface infection.¹

Then, in most dogs, something remarkable happens: the immune system recognises it and clears it. The whole course, from first appearance to gone, is typically two to three months, and no treatment is needed.²

Why the vet still wants a look

Because from the outside a histiocytoma can look like a mast cell tumor, which is a different matter entirely. A quick needle aspirate, examined under the microscope, tells the two apart and is usually all the diagnosis needs.¹ Once it is confirmed, watchful waiting is the standard approach. Your vet may step in sooner if the lump ulcerates and will not settle, bleeds, or clearly bothers the dog, and will want to re-check anything that has not started to shrink by about three months, or that appears on an older dog.¹

A veterinarian's experience with Nzymes

Dr. Kathleen Kenyon DVM, a veterinarian from the Fresno, California area, used Nzymes products in her practice for several years and some years ago recorded her observations on a number of the health challenges she saw. One was a white German Shepherd with a skin tumor about the size of a quarter on its lip, a histiocytoma. In her words:

"I decided to have the lady try the Nzymes and the Ox-E Drops, and to spray that skin tumor with Ox-E Drops five times a day. She called me a week later and said that the tumor was totally gone."Dr. Kathleen Kenyon DVM

Two things, then: Antioxidant Treats for nutritional support of the immune system that does the clearing, and Ox-E Drops in a 2% dilution, sprayed on the spot to keep it clean while it ran its course. That pairing is still how we would approach it today. The one addition since then is Ox-E Mineral Mist: Ox-E Drops already diluted to the same 2% strength in a spray bottle, so there is nothing to mix.

Dr. Kenyon noted that histiocytomas will sometimes go away on their own, and that is worth repeating: one case is one case. The reason we share it is that it shows a body doing what it is built to do when it has support.

What we recommend while it runs its course

Support the immune system doing the work, and keep the spot clean. A histiocytoma is one of the clearest demonstrations of a body healing itself when it has what it needs; our part is to make sure it does.