Fibroepithelial polyp

A fibroepithelial polyp is a small, noncancerous growth that develops on the surface of the skin or the lining of certain body parts, such as the urinary tract or genital area. It is made up of fibrous tissue (connective tissue that supports other tissues in the body) and is covered by a thin layer of epithelial cells (cells that form the outer surface of the skin and the lining of organs). These polyps are usually soft, flexible, and painless.

Where are fibroepithelial polyps found?

Fibroepithelial polyps can be found in many areas of the body, but they are most commonly seen in the skin, urinary tract, and genital region. In women, they may develop in the vagina or on the vulva. In men, they can appear on the penis. These polyps can also be found in the ureter (the tube that connects the kidneys to the bladder) and the bladder.

Is a fibroepithelial polyp the same as a skin tag?

A skin tag (also called an acrochordon) is a type of fibroepithelial polyp that develops on the skin. Skin tags are small, soft, and typically found in areas where skin rubs together, such as the neck, armpits, or groin. While all skin tags are fibroepithelial polyps, not all fibroepithelial polyps are skin tags. Fibroepithelial polyps can also develop in other parts of the body, such as the urinary tract and genital region. Both skin tags and fibroepithelial polyps are harmless, though their causes and locations may differ.

What causes a fibroepithelial polyp?

The exact cause of fibroepithelial polyps is not always known, but they may develop due to irritation, inflammation, or minor injuries to the tissue. Hormonal changes, such as those occurring during pregnancy, may also play a role in the development of these polyps, particularly in the genital region. In some cases, they are present from birth.

How is this diagnosis made?

A fibroepithelial polyp is usually diagnosed when a doctor examines the growth. If the polyp is found in the urinary tract or another internal location, imaging tests such as ultrasound or cystoscopy (a procedure that uses a thin camera to look inside the bladder) may be used. If necessary, a small sample of tissue may be removed and examined under a microscope by a pathologist to confirm the diagnosis.

What does a fibroepithelial polyp look like under the microscope?

When examined under a microscope, a fibroepithelial polyp is made up of a core of fibrous tissue, which gives it its structure, covered by a thin layer of epithelial cells. The fibrous tissue may contain blood vessels, and in some cases, mild inflammation may be seen. The surface cells usually appear normal, without any signs of cancerous changes.

Is a fibroepithelial polyp something to be concerned about?

A fibroepithelial polyp is a benign (noncancerous) growth and does not pose a serious health risk. In many cases, treatment is not needed unless the polyp is causing symptoms such as pain, discomfort, or bleeding. If the polyp is bothersome or grows larger, a doctor may recommend removing it. Once removed, these polyps usually do not come back.