_:vb50949752 . _:vb50949752 . _:vb50949752 "url:https://en.wikipedia.org/wiki/Lymphangioma"^^ . _:vb50949752 . _:vb50949752 . _:vb50949752 . _:vb50949752 "A benign vascular tumor that is composed of dilated lymphatic channels."^^ .