Table 1

Immunohistochemistry in the differential diagnosis of PEComa tumors
PEComa Gastrointestinal stromal tumors Carcinoma Melanoma Paraganglioma
SMA positive variable
H-caldesmon positive
Desmine positive variable
HMB-45 positive positive
Melan-A positive positive
S-100 protein rarely variable positive positive
Chromogranin A negative rarely positive
Synaptophysin negative rarely positive
CK negative negative positive negative
EMA negative positive negative
CD117 negative positive
CD34 negative positive

Ameurtesse et al.

Ameurtesse et al. Diagnostic Pathology 2014 9:149   doi:10.1186/1746-1596-9-149

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