<unk>  is a rare disorder that consists mainly of abnormal blood vessels affecting the skin or internal organs – usually the gastrointestinal tract. The disease is characterized by the presence of fluid-filled blisters <unk> s) as visible, circumscribed, chronic lesions<unk> . It was described by William Bean in 1958.<unk>  is caused by somatic mutations in the TEK (TIE2) gene.
Blue rubber bleb nevus syndrome
Kaposi's sarcoma
Parinaud's oculoglandular syndrome
Cat-scratch disease
Vestibular papillomatosis
Blount's disease
Berlin's edema
Tar melanosis