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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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With regard to the malignant behavior of leiomyosarcoma, the most impoant criterion is
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The correct answer is  Option 4 is correct=the number of mitosis per high power field Leiomyosarcomas typically take the form of soft, hemorrhagic, necrotic masses. The diagnostic features of ove leiomyosarcoma include tumor necrosis, cytologic atypia, and mitotic activity. Robbins basic pathology 9th edition page no 694,heading=leiomyosarcomas..box=Morphology ref img