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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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Fixity of the breast tissue in carcinoma of breast indicates infiltration of
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The correct answer is  Answer- C. Pectoralis muscle and fasciaFixity of the breast tissue is tested by asking the patient to press the hand against the hip forcibly to contract Pectoralis major muscle & moves the breast over the pectoralis fascia in the direction of muscle frbres of the pectorals major muscle.Loss of normal mobility or fixity of the breast tissue indicates spread of cancer cells to underlying pectoralis muscle and fascia.