Sarcomatoid Squamous Cell Skin Carcinoma, also known as spindle cell squamous cell carcinoma, is related to fibrous histiocytoma and breast metaplastic carcinoma. An important gene associated with Sarcomatoid Squamous Cell Skin Carcinoma is KRT5 (Keratin 5), and among its related pathways/superpathways are Cell surface interactions at the vascular wall and Hematopoietic Stem Cells and Lineage-specific Markers. Affiliated tissues include skin and tongue, and related phenotype is Increased shRNA abundance (Z-score > 2).