<prompt> True about leimyosarcoma breastAxillary lymph mode dissection is mandatoryWell encapsulatedFollow up not requiredMastectomy is mainstay treatment  <response>: .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 