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The chick embryo fibroblast infected by Rous sarcoma virus in vitro acquires the capacity to produce the acid mucopolysaccharides which are found in the tumors caused by this virus and which are also produced by tumor cells in vitro. The transformed cell acquires synthetic as well as morphologic,
A rare, distinctive neoplasm occurring in the soft tissue of the extremities and resembling chordoma has been recently described and variously termed "chordoid sarcoma," "chordoid tumor," and "parachordoma." An example of this tumor occurring in the flank is presented. The tumor lacks the
A cell line was established from a portion of a 25-cm stromal sarcoma of the left breast of a 65-year-old woman. The clinical course was rapid with tumor recurrence on the chest wall less than 1 month after mastectomy. Other cutaneous and abdominal metastases occurred shortly thereafter, and death
Myxoinflammatory fibroblastic sarcoma (MIFS) is a rare, low-grade, malignant, soft-tissue tumor that typically affects the distal extremities of middle-aged patients. In most cases, it presents as a painless, slowly growing mass within the subcutaneous tissue. It is associated with a low rate of