Ovarian Tumors Classification

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Questions and Answers

Where do most primary ovarian neoplasms arise from?

  • Germ cells
  • Stromal cells
  • Surface/fallopian tube epithelium (correct)
  • Endometriosis

Which component of the ovary gives rise to the endocrine apparatus of the postnatal ovary?

  • Germ cells
  • Sex cords
  • Müllerian epithelium
  • Stromal cells (correct)

Which tumors arise from müllerian epithelium?

  • Secondary tumors
  • Borderline tumors
  • Stromal tumors
  • Epithelial tumors (correct)

Which factor(s) are used to classify epithelial tumors of the ovary?

<p>Differentiation and extent of proliferation (C)</p> Signup and view all the answers

What are the three major histologic types of epithelial tumors based on the differentiation of the neoplastic epithelium?

<p>Serous, mucinous, endometrioid (C)</p> Signup and view all the answers

How are borderline tumors and malignant tumors of the ovary different from benign tumors?

<p>They may have a cystic component (B)</p> Signup and view all the answers

Which type of ovarian tumors account for approximately 40% of all cancers of the ovary?

<p>Serous tumors (D)</p> Signup and view all the answers

What percentage of ovarian tumors are benign or borderline?

<p>70% (D)</p> Signup and view all the answers

What distinguishes high-grade serous carcinoma from low-grade serous carcinoma histopathologically, based on the MDacc two-tier grading system?

<p>Frequent mitotic figures and nuclear pleomorphism (D)</p> Signup and view all the answers

Between what ages are benign and borderline ovarian tumors most common?

<p>Between 20 and 45 years (D)</p> Signup and view all the answers

Flashcards

Origin of most primary ovarian neoplasms?

Surface/fallopian tube epithelium is where most primary ovarian neoplasms arise.

Origin of postnatal ovary endocrine apparatus?

Stromal cells give rise to the endocrine apparatus of the postnatal ovary.

Tumor origin from Müllerian epithelium?

Epithelial tumors arise from Müllerian epithelium.

Factors classifying ovarian epithelial tumors?

Differentiation and extent of proliferation are used to classify epithelial tumors of the ovary.

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Major histologic types of epithelial tumors?

Serous, mucinous, and endometrioid are the major histologic types of epithelial tumors.

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Difference of borderline/malignant tumors?

Borderline and malignant ovarian tumors may have a cystic component, unlike benign tumors.

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Percentage of ovarian cancers from serous tumors?

Serous tumors account for approximately 40% of all ovarian cancers.

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Percentage of benign/borderline ovarian tumors?

70% of ovarian tumors are benign or borderline.

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Distinction between high/low-grade serous carcinoma?

Frequent mitotic figures and nuclear pleomorphism distinguish high-grade from low-grade serous carcinoma.

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Common age range for benign/borderline tumors?

Benign and borderline ovarian tumors are most common between 20 and 45 years.

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