Table 1.

Curaçao criteria for clinical diagnosis of HHT

Criteria
Epistaxis	Spontaneous and recurrent
Telangiectasia	Multiple, at characteristic sites: lips, oral cavity, fingers, and nose
Visceral lesions	Such as gastrointestinal telangiectasia, or pulmonary, hepatic, cerebra, or spinal AVMs
Family history	A first-degree relative with HHT according to these criteria
HHT diagnosis is
Definite	If three or more criteria are present
Possible or suspected	If two criteria are present
Unlikely	If fewer than two criteria are present

Abbreviations: AVM, arteriovenous malformations; HHT, hereditary hemorrhagic telangiectasia.