Question

9. Which of the following is an ILD with no specific cause (idiopathic interstitial pneumonias)? a. Pulmonary alveolar proteinosis b. Sarcoidosis c. Scleroderma d. Idiopathic pulmonary fibrosis 10.Which type of carcinomas have a rapid doubling time, and early distant spread a a rule? a. Non-small-cell b. Small cell C. Squamous cell d. None of the above 11.Benign tumors: I.Grow in a disordered manner II.Are usually encapsulated III.Are metastatic IV. Grow slowly a. I only b. II only C. II and IV d. /, III, and IV

I just need the write answers.

Answer 1

9. a. pulmonary alveolar proteinosis

Reason; It is caused by impaired surfactant related to alveolar macrophages dysfunction.

10. b. Small cells

Reason: small cells tumors have rapid doubling time and early distant spread

11. C. II and IV

Reason : benign tumours are usually encapsulated and slow growth rate without metastasis.

12.d. I,II,III

Reason: malignant tumour can grow rapid and have metastasis property and can invade to surrounding tissues.Necrosis caused by hypoxia and decreased blood supply to malignant cells.

13. d. Cigarette smoking:

Reason: 80% of lung cancer caused by smoking.

14. b. adenocarcinoma

Reason: This cancer starts from mucous gland of lungs.

15. d. A tumour near the upper portion of the right lung that compresses the superior vena cava.

16. a. Small cell carcinoma