One of the most challenging diagnostic categories within tumors of the sinonasal tract is the small round blue cell tumors. Biopsies are usually small and limited, resulting in considerable diagnostic ...
Although MIC2 (CD99), a marker frequently used for the diagnosis of Ewing’s sarcomas and primitive neuroectodermal tumors, has been shown to be positive in 20 to 35% of desmoplastic small round cell ...