Table 1 Summary of immunohistochemical staining for ALK in epithelioid fibrous histiocytoma and other tumor types
From: ALK rearrangement and overexpression in epithelioid fibrous histiocytoma
Tumor type | Total cases | ALK positive (%) |
|---|---|---|
Epithelioid fibrous histiocytoma | 33 | 29 (88) |
Aneurysmal fibrous histiocytoma | 10 | 0 (0) |
Atypical fibrous histiocytoma | 10 | 0 (0) |
Atypical fibroxanthoma | 5 | 0 (0) |
Cellular fibrous histiocytoma | 10 | 0 (0) |
Conventional fibrous histiocytoma | 11 | 0 (0) |
Cutaneous syncytial myoepithelioma | 10 | 0 (0) |
