Thelansis

  Fibrosarcomas are malignant neoplasms of fibroblasts with varying collagen production and a "herringbone" architecture. Fibrosarcomas typically originate from the fascia and soft tissue tendons but can also occur in bones as primary or secondary tumors in the medullary canal or periosteum. These tumors derive from a mesenchymal cell origin, composed of spindle-cell fibroblasts with uncontrolled proliferation. Fibrosarcomas are divided into infantile (rarely metastasizing) and adult-type (highly malignant). Previous bone damage or radiotherapy may increase the risk of fibrosarcoma of the bone. Surgical excision is the primary treatment for localized soft tissue sarcomas. Some diagnoses include low-grade fibromyxoid sarcomas, sclerosing epithelioid fibrosarcomas, fibrosarcomatous dermatofibrosarcoma protuberans, and synovial sarcomas, which may be mistaken for adult fibrosarcoma. Most adult fibrosarcomas (80%) are high-grade, with a survival rate of less than 70% at two yea...

 Fibrosarcomas are malignant neoplasms of fibroblasts with varying collagen production and a "herringbone" architecture. Fibrosarcomas typically originate from the fascia and soft tissue tendons but can also occur in bones as primary or secondary tumors in the medullary canal or periosteum. These tumors derive from a mesenchymal cell origin, composed of spindle-cell fibroblasts with uncontrolled proliferation. Fibrosarcomas are divided into infantile (rarely metastasizing) and adult-type (highly malignant). Previous bone damage or radiotherapy may increase the risk of fibrosarcoma of the bone. Surgical excision is the primary treatment for localized soft tissue sarcomas. Some diagnoses include low-grade fibromyxoid sarcomas, sclerosing epithelioid fibrosarcomas, fibrosarcomatous dermatofibrosarcoma protuberans, and synovial sarcomas, which may be mistaken for adult fibrosarcoma. Most adult fibrosarcomas (80%) are high-grade, with a survival rate of less than 70% at two years ...