1. What is the most common primary malignant bone tumor?
a) Osteosarcoma
b) Ewing’s Sarcoma
c) Chondrosarcoma
d) Multiple Myeloma
Answer: a) Osteosarcoma
2. Which of the following conditions is characterized by the presence of “ground-glass” opacities on chest radiographs? a) Pulmonary edema b) Pneumonia c) Interstitial lung disease d) Emphysema Answer: c) Interstitial lung disease
3. The “double bubble” sign is seen in which of the following conditions? a) Hirschsprung disease b) Duodenal atresia c) Meconium ileus d) Intussusception Answer: b) Duodenal atresia
4. What is the hallmark radiological feature of osteoarthritis? a) Bone spurs b) Joint space narrowing c) Subchondral sclerosis d) All of the above Answer: d) All of the above
5. Which pathology demonstrates a “thumbprint sign” on a radiograph? a) Epiglottitis b) Croup c) Laryngomalacia d) Foreign body aspiration Answer: a) Epiglottitis
6. “Honeycombing” on high-resolution CT (HRCT) of the lungs is most suggestive of which condition? a) Pulmonary embolism b) Idiopathic pulmonary fibrosis c) Sarcoidosis d) Bronchiectasis Answer: b) Idiopathic pulmonary fibrosis
7. Which of the following is most commonly associated with a “snowstorm appearance” on ultrasound? a) Ectopic pregnancy b) Hydatidiform mole c) Ovarian torsion d) Appendicitis Answer: b) Hydatidiform mole
8. What is the most common cause of a “sunburst pattern” in a bone tumor on radiograph? a) Osteosarcoma b) Ewing’s sarcoma c) Chondrosarcoma d) Giant cell tumor Answer: a) Osteosarcoma
9. The “string of pearls” sign in abdominal imaging is indicative of what condition? a) Crohn’s disease b) Small bowel obstruction c) Appendicitis d) Colitis Answer: b) Small bowel obstruction
10. A “bat-wing” appearance on chest X-ray is most commonly seen in: a) Pulmonary edema b) Pulmonary embolism c) Tuberculosis d) COPD Answer: a) Pulmonary edema
11. What is the most common radiologic feature of multiple sclerosis (MS) on MRI? a) Butterfly glioma b) Dawson’s fingers c) Gadolinium enhancement d) Diffuse axonal injury Answer: b) Dawson’s fingers
12. A “flask-shaped” heart on chest X-ray is associated with which condition? a) Pericardial effusion b) Cardiomyopathy c) Pulmonary hypertension d) Pleural effusion Answer: a) Pericardial effusion
13. Which sign on CT is characteristic of pneumoperitoneum? a) Rigler’s sign b) Stellate sign c) Kehr’s sign d) Murphy’s sign Answer: a) Rigler’s sign
14. What is the most common benign bone tumor? a) Osteochondroma b) Giant cell tumor c) Enchondroma d) Aneurysmal bone cyst Answer: a) Osteochondroma
15. Which of the following is a hallmark radiologic feature of ankylosing spondylitis? a) Bamboo spine b) Osteophyte formation c) Sacroiliac joint narrowing d) Lytic lesions Answer: a) Bamboo spine
16. “Eggshell calcification” of the lymph nodes on chest radiography is typically seen in: a) Sarcoidosis b) Tuberculosis c) Silicosis d) Histoplasmosis Answer: c) Silicosis
17. A “tram-track” appearance on chest CT is indicative of which condition? a) Bronchiectasis b) Cystic fibrosis c) Pneumothorax d) Tuberculosis Answer: a) Bronchiectasis
18. The “apple core” lesion is associated with which of the following conditions? a) Esophageal cancer b) Colorectal cancer c) Gastric cancer d) Pancreatic cancer Answer: b) Colorectal cancer
19. Which of the following describes a characteristic feature of glioblastoma on MRI? a) Butterfly appearance b) Ring enhancement c) Hyperintense lesion d) All of the above Answer: d) All of the above
20. What radiological sign is commonly seen in slipped capital femoral epiphysis (SCFE)? a) Ice-cream slipping off cone sign b) Crescent sign c) Double line sign d) Bony spur Answer: a) Ice-cream slipping off cone sign
21. Which of the following is a feature of a benign thyroid nodule on ultrasound? a) Hypoechoic texture b) Microcalcifications c) Well-defined margins d) Taller-than-wide shape Answer: c) Well-defined margins
22. The “Crescent sign” on MRI is a hallmark of which condition? a) Avascular necrosis b) Osteosarcoma c) Ewing’s sarcoma d) Paget’s disease Answer: a) Avascular necrosis
23. What radiological finding is often seen in congenital diaphragmatic hernia? a) Bowel loops in the thorax b) Enlarged cardiac silhouette c) Pneumothorax d) Pleural effusion Answer: a) Bowel loops in the thorax
24. The characteristic imaging finding in “bowel ischemia” is: a) Pneumatosis intestinalis b) Dilated bowel loops c) Thumbprinting d) Free air under diaphragm Answer: a) Pneumatosis intestinalis
25. “Codman’s triangle” is a classic feature in which bone pathology? a) Osteosarcoma b) Chondrosarcoma c) Ewing’s sarcoma d) Osteoid osteoma Answer: a) Osteosarcoma
26. The characteristic appearance of a “football sign” on radiograph indicates: a) Pneumoperitoneum b) Pleural effusion c) Pneumothorax d) Ascites Answer: a) Pneumoperitoneum
27. The “tree-in-bud” pattern seen on HRCT of the chest is most indicative of: a) Bronchitis b) Tuberculosis c) Pneumonia d) Bronchiolitis Answer: d) Bronchiolitis
28. Which of the following is a radiographic hallmark of lead poisoning? a) Lead lines at the metaphyses b) Subperiosteal bone resorption c) Bone within a bone appearance d) Ivory vertebra Answer: a) Lead lines at the metaphyses
29. The “salt and pepper” skull appearance is associated with: a) Hyperparathyroidism b) Osteomalacia c) Paget’s disease d) Rickets Answer: a) Hyperparathyroidism
30. The “collar sign” in gastrointestinal imaging is indicative of: a) Intussusception b) Volvulus c) Hiatal hernia d) Duodenal ulcer Answer: c) Hiatal hernia
2. Which of the following conditions is characterized by the presence of “ground-glass” opacities on chest radiographs? a) Pulmonary edema b) Pneumonia c) Interstitial lung disease d) Emphysema Answer: c) Interstitial lung disease
3. The “double bubble” sign is seen in which of the following conditions? a) Hirschsprung disease b) Duodenal atresia c) Meconium ileus d) Intussusception Answer: b) Duodenal atresia
4. What is the hallmark radiological feature of osteoarthritis? a) Bone spurs b) Joint space narrowing c) Subchondral sclerosis d) All of the above Answer: d) All of the above
5. Which pathology demonstrates a “thumbprint sign” on a radiograph? a) Epiglottitis b) Croup c) Laryngomalacia d) Foreign body aspiration Answer: a) Epiglottitis
6. “Honeycombing” on high-resolution CT (HRCT) of the lungs is most suggestive of which condition? a) Pulmonary embolism b) Idiopathic pulmonary fibrosis c) Sarcoidosis d) Bronchiectasis Answer: b) Idiopathic pulmonary fibrosis
7. Which of the following is most commonly associated with a “snowstorm appearance” on ultrasound? a) Ectopic pregnancy b) Hydatidiform mole c) Ovarian torsion d) Appendicitis Answer: b) Hydatidiform mole
8. What is the most common cause of a “sunburst pattern” in a bone tumor on radiograph? a) Osteosarcoma b) Ewing’s sarcoma c) Chondrosarcoma d) Giant cell tumor Answer: a) Osteosarcoma
9. The “string of pearls” sign in abdominal imaging is indicative of what condition? a) Crohn’s disease b) Small bowel obstruction c) Appendicitis d) Colitis Answer: b) Small bowel obstruction
10. A “bat-wing” appearance on chest X-ray is most commonly seen in: a) Pulmonary edema b) Pulmonary embolism c) Tuberculosis d) COPD Answer: a) Pulmonary edema
11. What is the most common radiologic feature of multiple sclerosis (MS) on MRI? a) Butterfly glioma b) Dawson’s fingers c) Gadolinium enhancement d) Diffuse axonal injury Answer: b) Dawson’s fingers
12. A “flask-shaped” heart on chest X-ray is associated with which condition? a) Pericardial effusion b) Cardiomyopathy c) Pulmonary hypertension d) Pleural effusion Answer: a) Pericardial effusion
13. Which sign on CT is characteristic of pneumoperitoneum? a) Rigler’s sign b) Stellate sign c) Kehr’s sign d) Murphy’s sign Answer: a) Rigler’s sign
14. What is the most common benign bone tumor? a) Osteochondroma b) Giant cell tumor c) Enchondroma d) Aneurysmal bone cyst Answer: a) Osteochondroma
15. Which of the following is a hallmark radiologic feature of ankylosing spondylitis? a) Bamboo spine b) Osteophyte formation c) Sacroiliac joint narrowing d) Lytic lesions Answer: a) Bamboo spine
16. “Eggshell calcification” of the lymph nodes on chest radiography is typically seen in: a) Sarcoidosis b) Tuberculosis c) Silicosis d) Histoplasmosis Answer: c) Silicosis
17. A “tram-track” appearance on chest CT is indicative of which condition? a) Bronchiectasis b) Cystic fibrosis c) Pneumothorax d) Tuberculosis Answer: a) Bronchiectasis
18. The “apple core” lesion is associated with which of the following conditions? a) Esophageal cancer b) Colorectal cancer c) Gastric cancer d) Pancreatic cancer Answer: b) Colorectal cancer
19. Which of the following describes a characteristic feature of glioblastoma on MRI? a) Butterfly appearance b) Ring enhancement c) Hyperintense lesion d) All of the above Answer: d) All of the above
20. What radiological sign is commonly seen in slipped capital femoral epiphysis (SCFE)? a) Ice-cream slipping off cone sign b) Crescent sign c) Double line sign d) Bony spur Answer: a) Ice-cream slipping off cone sign
21. Which of the following is a feature of a benign thyroid nodule on ultrasound? a) Hypoechoic texture b) Microcalcifications c) Well-defined margins d) Taller-than-wide shape Answer: c) Well-defined margins
22. The “Crescent sign” on MRI is a hallmark of which condition? a) Avascular necrosis b) Osteosarcoma c) Ewing’s sarcoma d) Paget’s disease Answer: a) Avascular necrosis
23. What radiological finding is often seen in congenital diaphragmatic hernia? a) Bowel loops in the thorax b) Enlarged cardiac silhouette c) Pneumothorax d) Pleural effusion Answer: a) Bowel loops in the thorax
24. The characteristic imaging finding in “bowel ischemia” is: a) Pneumatosis intestinalis b) Dilated bowel loops c) Thumbprinting d) Free air under diaphragm Answer: a) Pneumatosis intestinalis
25. “Codman’s triangle” is a classic feature in which bone pathology? a) Osteosarcoma b) Chondrosarcoma c) Ewing’s sarcoma d) Osteoid osteoma Answer: a) Osteosarcoma
26. The characteristic appearance of a “football sign” on radiograph indicates: a) Pneumoperitoneum b) Pleural effusion c) Pneumothorax d) Ascites Answer: a) Pneumoperitoneum
27. The “tree-in-bud” pattern seen on HRCT of the chest is most indicative of: a) Bronchitis b) Tuberculosis c) Pneumonia d) Bronchiolitis Answer: d) Bronchiolitis
28. Which of the following is a radiographic hallmark of lead poisoning? a) Lead lines at the metaphyses b) Subperiosteal bone resorption c) Bone within a bone appearance d) Ivory vertebra Answer: a) Lead lines at the metaphyses
29. The “salt and pepper” skull appearance is associated with: a) Hyperparathyroidism b) Osteomalacia c) Paget’s disease d) Rickets Answer: a) Hyperparathyroidism
30. The “collar sign” in gastrointestinal imaging is indicative of: a) Intussusception b) Volvulus c) Hiatal hernia d) Duodenal ulcer Answer: c) Hiatal hernia