Neoplasia

Which statement best defines neoplasia in pathology?

• Uncontrolled clonal cell proliferation

• Programmed physiologic cell death

• Reversible tissue growth adaptation

• Inflammatory reactive hyperplasia

Which feature most reliably distinguishes benign from malignant tumors?

• Ability to metastasize to distant sites

• Dependence on hormonal stimulation

• Origin from epithelial cell lineages

• Presence of a fibrous capsule boundary

Which cell morphology change is typical of malignant transformation?

• Abundant orderly cytoplasmic granules

• Uniform small round nuclei

• High nuclear-to-cytoplasmic ratio

• Regular mitoses at cell borders

Which features are typical of benign neoplasms?

• Slow rate of proliferation

• Often encapsulated by a fibrous capsule

• Localized and noninvasive growth

• Poorly differentiated anaplastic cells

Which combination characterizes malignant neoplasms?

• No invasion, no metastasis, well differentiated

• Capsule, autolysis, regression, hormonal dependence

• Localization, capsule, slow growth, normal morphology

• Invasion, metastasis, poor differentiation, fast growth

Loss of normal regulatory mechanisms in cells most directly leads to what outcome in neoplasia?

• Programmed cell death via apoptosis

• Uncontrolled proliferation forming a neoplasm

• Cellular senescence and quiescence

• Enhanced immune surveillance activation

Which pair correctly matches tumor category with an example?

• Benign neoplasm — melanoma

• Benign neoplasm — carcinoma

• Malignant neoplasm — lipoma

• Malignant neoplasm — sarcoma

What is a neoplasm?

• The mass of newly formed tissue

• A metastatic malignant tumor

• A reversible hyperplastic response

• The process of tumor formation

Neoplasia refers to which concept?

• A malignant epithelial neoplasm

• A non-neoplastic reactive swelling

• The process of tumor formation

• The regression of abnormal growth

Which feature best distinguishes malignant from benign neoplasms regarding differentiation?

• Well differentiated but rapidly proliferative

• Poorly differentiated showing anaplasia

• Well differentiated with preserved function

• Moderately differentiated with uniform nuclei