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Questions and Answers
Which of the following statements about adenoacanthoma is true?
Which of the following statements about adenoacanthoma is true?
- It is a malignant tumor composed of adenocarcinoma and mesenchymal tissue
- It is a benign tumor composed of adenocarcinoma and squamous elements
- It is a benign tumor composed of adenocarcinoma and mesenchymal tissue
- It is a malignant tumor composed of adenocarcinoma and squamous elements (correct)
Which of the following statements about mixed tumors of the salivary gland is true?
Which of the following statements about mixed tumors of the salivary gland is true?
- They are malignant tumors composed of only epithelial tissue elements
- They are malignant tumors composed of both epithelial and mesenchymal tissue elements
- They are benign tumors composed of only mesenchymal tissue elements
- They are benign tumors composed of both epithelial and mesenchymal tissue elements (correct)
Which of the following statements about teratomas is false?
Which of the following statements about teratomas is false?
- They are always malignant tumors (correct)
- They can occur at extra-gonadal sites such as the head and neck region
- They are composed of various tissue types derived from the three germ cell layers
- They are most commonly found in the ovaries and testes
