Sarcomatoid Carcinoma: A Clinicopathological Profile of Two Cases with Diagnostic Emphasis

Sarcomatoid carcinoma (SC) is an unusual and aggressive variant of squamous cell carcinoma, which frequently recurs and metastasizes, and is associated with poor survival rate. For this reason, its accurate diagnosis is very important. It is considered to be a biphasic tumor made up of epithelial as well as spindle cell component, but of epithelial origin. The diagnosis often represents a clinicopathologic challenge, and immunohistochemistry plays a key role in the histopathological diagnosis. The reported cases in oral cavity are limited. Here, we present two cases of SC where the use of immunohistochemistry allowed us to achieve a conclusive diagnosis.