Uterine PEComa: appraisal of a controversial and increasingly reported mesenchymal neoplasm

Table 2 The immunophenotypic profile of the reported uterine PEComas**

Antibody	Percentage positive
HMB-45	100
Smooth muscle actin	73
Vimentin	56
Desmin	49
Muscle-specific actin	36
CD10	25
Melan-A	24
CD117	9
CD34	5
Chromogranin	0
S100	3
Keratin	3
Epithelial Membrane Antigen	0
Inhibin	0

**Data from Fadare (8), and only includes markers for which at least 10 cases have been tested. Any extent or intensity of staining considered positive