What is linear morphea?
Linear morphea is also called localised scleroderma. They are the same thing. It is a condition in which the skin becomes hardened and thickened, but unlike systemic scleroderma it stays in the skin and does not affect internal organs such as the heart, lungs, or GI system.
The vast majority of people with linear morphea are otherwise completely healthy. What we mainly manage are the cosmetic effects on skin colour, texture, and tissue, with rare involvement of the eye or brain in head morphea.
Linear morphea is an umbrella term. Several conditions with different names are all simply linear morphea occurring in different parts of the body.
Names you may have heard
- En coup de sabre — linear morphea affecting the forehead or scalp
- Hemifacial atrophy — affecting one side of the face
- Parry-Romberg syndrome — affecting the face with deeper tissue involvement
- Craniofacial morphea — a broader term for morphea of the head
Activity versus damage
Active morphea is like a fire. Damage is what the fire leaves behind.
Heidi Jacobe, MD, MSCS
This distinction is the foundation of everything we do. Medications can stop the fire, but they cannot undo damage that has already occurred. That is why timing matters so much.
Active — the fire
- Purple or red edge around the lesion
- Warmth to the touch
- Increasing firmness or tightness
- Itching or burning sensation
Inactive — the damage
- Darkening or lightening of the skin
- Thinning of the skin
- Indentations or concave areas
- Tissue loss
When we see someone with morphea, the first goal is to work out which phase they are in. If there is a fire, we want it out early, to prevent damage and loss of function.
Risk: depth and location
Not all linear morphea is the same. The potential impact on your health depends on two things: how deep the morphea goes and where it is located.
Superficial — skin only, lower risk
- Less likely to cause tissue loss
- Less likely to limit range of motion if on a limb
Deep — fat, fascia, or muscle, higher risk
- Greater chance of tissue loss and indentations
- Possible limitation of range of motion, especially crossing a joint
- Possible restricted growth if still growing
- Possible muscle weakness if muscle is involved
These deeper risks apply most directly to morphea on the arms and legs. Head and face morphea carries its own distinct considerations.
Head and face
Morphea affecting the head carries the most complex risks. Three areas need close monitoring.
Mouth, teeth, and gums
- Morphea near the lower face, chin, or upper neck can affect the gums, teeth, and tongue
- Make sure your dentist, orthodontist, or oral maxillofacial surgeon knows you have morphea
- Your doctor may refer you to one of these providers if there is concern
The eyes
- Morphea can affect the tissue surrounding the eye: fat pad, muscles, nearby tissue
- In about 3% of patients with head morphea it can cause inflammation inside the eye
- Everyone with head morphea should be evaluated by an ophthalmologist
The brain
- Brain involvement is rare, and the vast majority of patients are not affected
- Your doctor may order a brain MRI if there is concern
- Watch for new or worsening headaches, vision changes, seizures, or loss of strength
Seek emergency care immediately if you have
- Seizures of any kind
- Sudden loss of strength or paralysis
- New or worsening headaches, especially on one side
- Vision changes with pain, redness, or persistent eye grittiness
Treatment
Immunosuppressive medications are the water on the fire. They can stop the spread and prevent new damage, but they cannot erase damage that has already happened.
Current standard treatments
- First line, high-risk active disease: methotrexate
- If rapid or urgent: corticosteroids added to methotrexate
- Second line: mycophenolate mofetil (CellCept) if methotrexate is not tolerated
- Low risk only: topical anti-inflammatories or phototherapy under close supervision
The morphea fire meter
A simple way to think about your level of risk. This is not a diagnosis. Always work with your provider to determine your plan.
Low risk
Superficial, stable lesions with no organ involvement. Topical therapy or phototherapy with close monitoring.
Mid risk
Active, changing lesions, or mid-to-higher risk sites. Consider methotrexate or CellCept.
High risk
Deep involvement, face or scalp, joint, or organ involvement. Systemic steroids with methotrexate or CellCept.
Treating damage when morphea is inactive
Even after morphea becomes inactive, the damage it left behind can often be addressed.
Facial tissue loss
- Fat transfer, via a plastic surgery consultation, is often recommended
- Only done when morphea is inactive
- Must be done alongside a dermatologist or rheumatologist familiar with morphea
- Fat transfer does not treat active morphea or prevent new areas
- Free tissue transfer is not recommended except in the most severe cases, and only with a highly experienced plastic surgeon working alongside your morphea specialist
Limb function
- Occupational and physical therapy for range of motion, strengthening, and balance
Facial function
- Occupational therapy for difficulty opening the mouth
- Oral maxillofacial surgery for muscle spasms or deep involvement
Finding the right provider
Linear morphea is extremely rare, and even excellent doctors may not be familiar with its evaluation and treatment. Time matters — the fire needs to be put out early.
Who to look for
- In children: a paediatric dermatologist or paediatric rheumatologist at an academic medical centre
- In adults: a medical dermatologist, or a dermatologist specialising in rheumatologic dermatology
- Look for providers affiliated with a medical school
- Useful bodies: Medical Dermatology Society, Rheumatology Dermatology Society, National Scleroderma Foundation
Referrals worth asking about
- Ophthalmologist, especially for head morphea
- Rheumatologist
- Orthodontist or oral maxillofacial surgeon
- Neurologist if there is head involvement
How to be proactive
- Photograph your lesions regularly to track changes over time
- Learn to recognise the signs of activity versus damage
- Take medications consistently and report side effects promptly
- Contact your provider between appointments if you notice new lesions, sudden loss of range of motion, or accelerating tissue loss
Common myths
Misinformation about morphea circulates online, and it delays treatment. Open each claim to see what the evidence actually says.
Linear morphea can turn into systemic sclerosis.
There is no evidence of this. They are completely different conditions. People with linear morphea do not have increased risk of the heart, lung, or GI involvement that characterises systemic sclerosis.
COVID vaccines or COVID infection caused morphea.
Studies, including one by Dr. Jacobe's own research group, show morphea case rates remained stable through the pandemic and after vaccine rollout. No population-level link has been found.
Lyme disease causes morphea, and antibiotics can cure it.
Evidence does not support Lyme disease as a cause of linear morphea, and antibiotics do not treat it. Routine Lyme testing is not recommended unless there is a clear clinical history evaluated by a qualified specialist.
Detox therapies or special diets can cure morphea.
No research supports detox regimes or specialised diets for morphea. A healthy balanced diet is recommended for general health, but dietary manipulation alone delays real treatment and increases the risk of permanent damage.
Morphea always burns out, so treatment can wait.
Untreated active morphea causes permanent damage. Just as an untreated forest fire destroys far more than one addressed early, leaving active morphea alone results in far more damage than prompt treatment.
DIY phototherapy or tanning beds can treat morphea.
Tanning beds are definitively linked with increased skin cancer risk, including melanoma. Home phototherapy units have uncertain output and wavelength. Phototherapy must be guided by a knowledgeable dermatologist.
With linear morphea we treat activity like a fire. The earlier we put it out — especially in high-risk sites or with deep tissue involvement — the more damage we can prevent.
Heidi Jacobe, MD, MSCS — UT Southwestern Medical Center