Diagnosis and treatment of birth marks, from infantile haemangioma and port wine stain to venous, lymphatic and arteriovenous malformations.
Birth marks fall into two groups that behave completely differently. Vascular tumours, chiefly infantile haemangioma, usually appear in the weeks after birth, grow for some months and then shrink slowly over years. Vascular malformations are present at birth, grow in proportion with the child and never disappear. Because the treatment differs entirely, the first step is deciding which of the two is present.
An infantile haemangioma is often not visible at birth. It appears in the first weeks as a faint mark, grows over roughly the first six to nine months, then slowly involutes over several years. Most need nothing but photographs and review. A minority need treatment, and beta blocker medication, given by mouth or applied to the skin, has largely replaced surgery as the first response for those.
A vascular malformation is present at birth, though a faint one may not be noticed immediately. It grows in proportion with the child, does not involute, and often becomes more obvious at puberty. Malformations are grouped by how fast blood moves through them. Slow flow lesions include the flat red capillary malformation known as a port wine stain, venous malformations that swell when the part is lowered or the child cries, and lymphatic malformations that can enlarge suddenly with infection. Fast flow arteriovenous malformations are warm, may pulsate, and are the most difficult to treat.
Pigmented birth marks are a separate matter. A brown congenital mole, particularly a large one, and flat brown patches are assessed on different grounds, including the small long term risk attached to very large moles, and are not managed like a vascular mark.
In many children the diagnosis is clinical, made on the history of when the mark appeared and how it has behaved. Photographs taken by the family at intervals are genuinely useful and are worth bringing. Ultrasound with Doppler is the usual first investigation where there is doubt, because it shows whether flow is fast or slow without sedating the child.
MRI is used to map the extent of a malformation before treatment, particularly where it involves muscle, the airway or the face, and angiography is reserved for arteriovenous lesions being considered for embolisation. Investigation is not automatic. A typical, uncomplicated haemangioma on the trunk usually needs a camera rather than a scanner.
For most haemangiomas the answer is observation with review, because the natural course does the work. Treatment is used where the lesion threatens the eye or the airway, ulcerates, bleeds or sits where residual skin change would be disfiguring. Medication is usually first, given under supervision with checks on heart rate and blood sugar. Surgery is generally reserved for the loose skin or fibrofatty residue left behind after involution.
Port wine stains are treated with pulsed dye laser, in several sessions spaced weeks apart, often beginning in infancy. Lightening rather than complete disappearance is the realistic aim, and stains can darken again over years, so maintenance sessions are common. Young children need general anaesthesia for laser, which affects both planning and cost.
Venous and lymphatic malformations are commonly treated by injecting a sclerosant that shrinks the abnormal channels, usually over more than one session, with surgery for what remains. Arteriovenous malformations are the most demanding: embolisation to block the feeding vessels followed within a day or two by surgical removal and reconstruction, because incomplete treatment is often followed by regrowth. Large pigmented moles are removed in stages, sometimes with a tissue expander to grow spare skin for the reconstruction.
| Factor | What it covers |
|---|---|
| Which type of mark it is | Haemangioma, capillary, venous, lymphatic and AVM differ completely |
| Size and site | Facial and airway lesions need more planning and imaging |
| Number of sessions | Laser and sclerotherapy are courses, not single treatments |
| Imaging | Ultrasound, MRI and angiography where the extent must be mapped |
| Anaesthesia | Young children need general anaesthesia for laser and injections |
| Embolisation | Materials and radiology time for fast flow lesions |
| Reconstruction | Staged excision or a tissue expander for large lesions |
These pages answer the questions that most often come up alongside this one.
An infantile haemangioma usually does, shrinking slowly over several years, though it may leave loose skin or a faint mark. A vascular malformation does not; it grows with the child and often becomes more obvious at puberty. Which one is present decides the answer, and that is what the first consultation establishes.
A haemangioma is a growth of blood vessel cells that appears after birth, enlarges and then involutes. A port wine stain is a flat capillary malformation present at birth that persists for life, darkens and thickens slowly with age, and is treated with laser rather than left alone.
For port wine stains, treatment is often begun in infancy, when the lesion is smaller and the skin thin. The decision balances that against the need for general anaesthesia in a young child, and is made case by case rather than by a fixed age.
Usually several, spaced weeks apart, and a realistic count is only given after seeing the response to the first few. Considerable lightening is a reasonable aim; complete disappearance often is not, and stains can darken again over years so that maintenance sessions are needed.
Arteriovenous malformations are known to recur if any part of the abnormal connection is left behind, which is why embolisation and surgery are combined and follow up is long. Venous and lymphatic malformations can also refill and may need repeat injections. A fully excised haemangioma remnant does not usually return.
Most are not. The ones that need prompt attention are those near the eye or the airway, those that ulcerate or bleed, fast flow lesions, and very large pigmented moles, which carry a small long term risk. A mark that is changing quickly should be seen rather than watched.
Most are sporadic and no cause is found. A few conditions involving vascular malformations do run in families, and where the pattern or the family history suggests one, referral for genetic assessment is offered rather than a guess given.
Cover varies. Treatment for bleeding, ulceration, functional problems or a lesion threatening the eye or airway is more often covered than treatment sought for appearance alone. The hospital team helps with documentation, and cover is confirmed with the insurer before treatment is booked.
Published with written patient consent and shown for education rather than promotion. Every case is different and these images are not a promise of results.
Consultations at Kiran Hospital, Katargam, Surat. Outstation and NRI patients can request a video consultation before travelling.