Understanding Benign Neoplasms and Local Invasion in Pathology
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Understanding Benign Neoplasms and Local Invasion in Pathology

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Questions and Answers

What is a characteristic of most benign tumors?

  • They are always demarcated from the surrounding tissue
  • They form encapsulated masses (correct)
  • They always infiltrate and metastasize
  • They lack a well-developed capsule
  • What is a distinguishing feature of leiomyoma of the uterus?

  • It is always encapsulated
  • It always infiltrates and metastasizes
  • It lacks a well-developed capsule (correct)
  • It is highly invasive
  • Why do surgical pathologists carefully examine the margins of resected tumors?

  • To look for well-defined capsules
  • To check for progressive infiltration
  • To ensure they are devoid of cancer cells (correct)
  • To confirm they are highly invasive
  • What distinguishes the growth pattern of cancers from benign tumors?

    <p>Cancers grow by infiltration and destruction of surrounding tissue</p> Signup and view all the answers

    What is a distinguishing feature of malignant tumors?

    <p>They do not develop well-defined capsules</p> Signup and view all the answers

    What is hypertrophy?

    <p>An increase in the size of cells due to the synthesis of more proteins and cell organelles</p> Signup and view all the answers

    What is hyperplasia?

    <p>An increase in the number of cells in an organ or tissue</p> Signup and view all the answers

    What stimulates hypertrophy in the heart?

    <p>Chronic hemodynamic overload</p> Signup and view all the answers

    What causes pathologic hyperplasia?

    <p>Excesses of hormones or growth factors acting on target cells</p> Signup and view all the answers

    What is the main difference between hypertrophy and hyperplasia?

    <p>Hypertrophy refers to an increase in cell size, while hyperplasia refers to an increase in cell number</p> Signup and view all the answers

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