Prostate Stromal Sarcoma, also known as stromal sarcoma of the prostate, is related to prostate sarcoma and spindle cell sarcoma. An important gene associated with Prostate Stromal Sarcoma is KLK3 (Kallikrein Related Peptidase 3), and among its related pathways/superpathways are Breast cancer pathway and GDNF signaling. Affiliated tissues include prostate, and related phenotypes are muscle and respiratory system