Unilateral nevoid telangiectasia

Unilateral nevoid telangiectasia presents with fine thread veins, typically over a segment of skin supplied by a particular nerve on one side of the body.^[1] It most frequently involves the trigeminal, C3 and C4, or nearby areas.^[1] The condition was named in 1970 by Victor Selmanowitz.^[2]

Unilateral nevoid telangiectasia
Specialty	Dermatology

Signs and symptoms

Unilateral nevoid telangiectasia is characterized by multiple chronic asymptomatic superficial blanching telangiectasias along dermatomes or Blaschko's lines,^[3] with asymmetric skin involvement,^[4] while symmetric instances have been infrequently recorded.^[5][6] The trunk and upper extremities' third and fourth cervical dermatomes are the most severely impacted.^[4]

Causes

Unilateral nevoid telangiectasia can be congenital or acquired. Rare congenital type manifests at or soon after the neonatal period; it is more common in males and occurs in an autosomal dominant pattern. Conversely, the acquired form is nearly exclusively found in young female patients who have physiologic problems.^[7]

Diagnosis

A normal-appearing epidermis with superficial dermal telangiectatic blood vessels beneath and a low level of inflammatory infiltration is revealed by histopathologic investigation.^[8]

Treatment

After the triggering factor is eliminated, unilateral nevoid telangiectasia usually persists but in rare situations, it resolves on its own. The first step in treatment is cosmetic concealment.^[7] The condition has improved aesthetically with the use of pulsed dye laser, which has proven to be a useful alternative.^[9]

See also

• Skin lesion
• List of cutaneous conditions