Table 1.

Curacao Criteria

Criterion	Description
1. Epistaxis	Spontaneous recurrent nosebleeds
2. Mucocutaneous telangiectasia	Multiple at characteristic sites: fingertip pulps, lips, oral cavity
3. Visceral involvement	Gastrointestinal, pulmonary, hepatic, cerebral or spinal AVM
4. Family history	A first-degree relative affected according to these criteria

The HHT diagnosis is classified as:

Definite: three criteria are present.

Possible or suspected: two criteria are present.

Unlikely: fewer than two criteria are present.