Neoplasia basics
A neoplasm is a clonal abnormal growth with variable biological behavior. Benign versus malignant classification considers invasion and metastatic potential, not size alone.
Open interactive lesson & self-check ↗Neoplasia basics — learning map
Original conceptual SVG · scalableOriginal schematic relationship map for this topic; relationships are organized for study, not intended as an anatomical depiction or a diagnostic algorithm.
Benign and malignant
Benign tumors generally lack destructive invasion and metastasis; malignant tumors can invade surrounding tissues and may spread to distant sites.
Hallmarks of malignancy
Cancer cells can acquire proliferative signaling, resist growth control and evade cell death while interacting with the host microenvironment.
Grade versus stage
Grade describes microscopic differentiation and other tumor-specific histologic features; stage describes extent of spread using a system specific to the cancer.
Diagnostic integration
Clinical evaluation, imaging, histology, immunohistochemistry and selected molecular tests may contribute to diagnosis and management planning.
Reference and next reading
Explore the original curriculum and publisher-hosted resources for full-depth reading; this note is an original schematic introduction, not an exhaustive chapter.