10 Questions
What is a characteristic of most benign tumors?
They form encapsulated masses
What is a distinguishing feature of leiomyoma of the uterus?
It lacks a well-developed capsule
Why do surgical pathologists carefully examine the margins of resected tumors?
To ensure they are devoid of cancer cells
What distinguishes the growth pattern of cancers from benign tumors?
Cancers grow by infiltration and destruction of surrounding tissue
What is a distinguishing feature of malignant tumors?
They do not develop well-defined capsules
What is hypertrophy?
An increase in the size of cells due to the synthesis of more proteins and cell organelles
What is hyperplasia?
An increase in the number of cells in an organ or tissue
What stimulates hypertrophy in the heart?
Chronic hemodynamic overload
What causes pathologic hyperplasia?
Excesses of hormones or growth factors acting on target cells
What is the main difference between hypertrophy and hyperplasia?
Hypertrophy refers to an increase in cell size, while hyperplasia refers to an increase in cell number
Learn about the features of benign neoplasms, including their localized growth, encapsulation, and lack of ability to infiltrate or metastasize. Explore the formation of capsules and the differences between benign and malignant tumors.
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