Table 1.

Criteria proposed by Heffez et al. for the diagnosis of Gorham-Stout disease

	Criteria	Clinical case
1	Positive histological findings for proliferation and angiomatous dysplasia	✓
2	Absence of osteoblastic reaction and/or dystrophic calcifications	✓
3	Evidence of local bone progressive resorption	✓
4	Exclusion of cellular atypia	✓
5	Non-ulcerative lesion	NA
6	Absence of visceral involvement	✓
7	Osteolytic radiographic pattern	✓
8	Negative hereditary, metabolic, neoplastic, immunologic, and infectious etiology	✓

NA Not available