Biology (10th Grade)
Cancer staging: carcinoma in situ vs invasive disease
Based on the visual models of cancer progression, if a patient is diagnosed with "cancer in situ," which of the following best describes the current state of their abnormal cells?
The cells have successfully invaded nearby lymphatic vessels but not blood vessels.
The cells are actively forming new secondary tumors in distant organs.
The tumor remains restricted to its original location and has not yet invaded local tissues.
The tumor has fragmented and is actively traveling throughout the bloodstream.
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