Case Report
Malignant Perivascular Epithelioid Cell Tumor of the Esophagus
Table 1
Immunohistochemical profile of the tumor.
| | Antigen | Clone and source | Dilution | Score values |
| | Melanosome | HMB45 (Dako, Glostrup, Denmark) | Prediluted | | | S100 | polyclonal (Ventana, Tucson, AZ, USA) | Prediluted | | | Vimentin | V9 (BioGenex, San Ramon, CA, USA) | 1 : 100 | | | Mitf | D5 (Dako) | 1 : 100 | | | Smooth muscle actin | HHF35 (Dako) | 1 : 800 | | | Desmin | D33 (Dako) | 1 : 50 | — | | High molecular weight cytokeratins | 34betaE12 (Ventana) | Prediluted | — | | Low molecular weight cytokeratins | CAM 5.2 (Becton-Dickinson, Mountainview, CA, USA) | 1 : 10 | — | | Intermediate/low-molecular-weight cytokeratins | MNF116 (Dako) | 1 : 50 | — | | CD45 antigen | RP2/18 (Ventana) | Prediluted | — | | CD99 antigen | 12E7 (Dako) | Prediluted | — | | Chromogranin | DAK A3 (Dako) | 1 : 100 | —
| | bcl-2 oncoprotein | 124 (Dako) | 1 : 50 | —
| | CD20 antigen | L26 (Ventana) | Prediluted | —
| | CD3 antigen | 2GV6 (Ventana) | Prediluted | — | | CD138 antigen | B-A38 (Ventana) | Prediluted | — | | Kappa chains | polyclonal (Ventana) | Prediluted | — | | Lambda chains | polyclonal (Ventana) | Prediluted | — | | PDGFRA | C-20 (Dako) | 1 : 100 | — |
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