Lymphangioma circumscriptum is characterized by a rash on the skin featuring clear vesicles.

The rash may appear similar to warts if the vesicles frequently break open.

A biopsy of the affected skin and histological examination under a microscope are necessary to confirm the diagnosis of lymphangioma circumscriptum.

Surgical removal (excision) of the affected skin layers is the most common and effective treatment.

Ablative carbon dioxide laser therapy is a less invasive method that can improve the appearance.