You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is True about leimyosarcoma breast and explain in detail?
.LEIOMYOSARCOMA * It arises from smooth muscle. Cut section shows whorled appearance. * It is undetermined grade. * It is common in retroperitoneum and viscera, but can occur in limbs and skin. * Recurrence is common. It has got poor prognosis. * It can occur in the piloerector muscle of skin; inferior vena cava; pulmonary aery. * Desmin and actin are the most common immunohistochemical stains.leiomyosarcoma of breast is a well encapsulated tumour. ref:SRB&;s manual of surgery,ed 3,pg no 268