Pilomatrixoma in Children
A pilomatrixoma, also known as pilomatricoma, is a slow-growing,
noncancerous (benign) skin tumor of the hair follicle. It's most common on the face
neck, but it may be on other parts of the body. A pilomatrixoma is often a single
But sometimes there may be more than one. Pilomatrixomas are more common in children
young adults than in older adults.
Pilomatrixomas develop when cells
harden and form a lump under the skin. The cells are similar to hair follicle cells.
Pilomatrixomas may be more common
in some families. They may also happen with conditions that are inherited (genetic
Here are the most common symptoms
of a pilomatrixoma:
- A small, hard lump beneath the skin,
often on the face or neck
- The skin covering the lump looks
normal or may have a blue color
- The lump is often painless, unless it
The symptoms of a pilomatrixoma can
seem like other health conditions. Make sure your child sees their healthcare provider
for a diagnosis.
A pilomatrixoma is often diagnosed
based on how it looks and feels. Diagnostic tests may include:
Biopsy. A tissue sample is taken and
looked at under a microscope.
Imaging. An X-ray, ultrasound, CT
scan, or MRI may be done.
Treatment may include surgery to cut out the lump. Surgery may be
done if the pilomatrixoma is uncomfortable, is cosmetically bothersome, or to confirm
Most children don't face any serious complications. But
pilomatrixomas can become cancer in rare cases. Pilomatrixomas can also come back
they are removed. Surgery to remove the lesion will result in a scar.
When to Call a Healthcare Provider
Call your child’s healthcare provider if you notice any skin lumps or
- A pilomatrixoma is a slow-growing,
noncancerous (benign) skin tumor of the hair follicle.
- It is a small, hard lump beneath the
skin. It's most often on the face and neck.
- The lump is often painless, unless it becomes infected.
- It's often diagnosed based on how it looks and feels. But a
biopsy and imaging tests may also be done.
- Treatment may include surgery to
remove the lump.
Tips to help you get the most from a visit to your child’s healthcare
- Know the reason for the visit and what you want to happen.
- Before your visit, write down questions you want answered.
- At the visit, write down the name of a new diagnosis, and any
new medicines, treatments, or tests. Also write down any new directions your provider
gives you for your child.
- Know why a new medicine or treatment is prescribed and how it
will help your child. Also know what the side effects are.
- Ask if your child’s condition can be treated in other ways.
- Know why a test or procedure is recommended and what the results
- Know what to expect if your child does not take the medicine or
have the test or procedure.
- If your child has a follow-up appointment, write down the date,
time, and purpose for that visit.
- Know how you can contact your child’s healthcare provider after
office hours. This is important if your child becomes ill and you have questions or