Crack Mci Mock Test Radiology

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  • 1/20 Questions

    The most radiosensitive tissue is

    • Brain
    • Bone marrow
    • Thyroid
    • Liver
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About This Quiz

This radiology mock test enhances understanding of key radiological signs and diagnostic procedures, focusing on areas like bone marrow radiosensitivity, Kerley B-lines, and specific imaging signs in medical conditions.

Radiology Quizzes & Trivia

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  • 2. 

    Water lily appearance is chest X-ray suggestive of

    • Bronchiectasis

    • Bronchopleural fistula

    • Hydatid cyst

    • Sequestration cyst of lung

    Correct Answer
    A. Hydatid cyst
    Explanation
    A water lily appearance on a chest X-ray is suggestive of a hydatid cyst. Hydatid cysts are caused by a parasitic infection called echinococcosis, which is commonly found in areas where livestock is raised. The cysts typically form in the liver or lungs and can have a characteristic appearance on imaging, resembling a water lily. This appearance is due to the cyst's internal structure, which consists of multiple daughter cysts surrounded by a thick outer wall. Treatment usually involves surgical removal of the cyst and antiparasitic medications.

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  • 3. 

    Signs of increased intracranial tension in a child in a skull X-ray

    • Separation of the sutures

    • Tense anterior fontanelle

    • Silver beaten appearance of the bones

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The signs of increased intracranial tension in a child in a skull X-ray include separation of the sutures, a tense anterior fontanelle, and a silver beaten appearance of the bones. These signs indicate that there is an increase in pressure within the skull, which can be caused by conditions such as hydrocephalus or brain tumors. The separation of the sutures suggests that the skull bones are expanding to accommodate the increased pressure, while a tense anterior fontanelle indicates increased fluid accumulation in the brain. The silver beaten appearance of the bones refers to the thinning and scalloping of the skull bones, which is another sign of increased intracranial pressure.

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  • 4. 

    Lymphography is most commonly employed for

    • Tuberculosis of spine

    • Hodgkin's disease

    • Cancer kidney

    • Retroperitoneal liposarcoma

    Correct Answer
    A. Hodgkin's disease
    Explanation
    Lymphography is most commonly employed for Hodgkin's disease because it helps in identifying the spread and involvement of lymph nodes in this type of cancer. Lymphography involves injecting a contrast dye into the lymphatic system and taking X-ray images to visualize the lymphatic vessels and lymph nodes. Hodgkin's disease is a type of lymphoma that primarily affects the lymphatic system, so lymphography can be useful in determining the extent of the disease and planning appropriate treatment strategies.

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  • 5. 

    The most radiosensitive tissue is

    • Brain

    • Bone marrow

    • Thyroid

    • Liver

    Correct Answer
    A. Bone marrow
    Explanation
    Bone marrow is the most radiosensitive tissue because it contains a high number of rapidly dividing cells, such as stem cells and progenitor cells. These cells are highly susceptible to damage from ionizing radiation, which can lead to a decrease in the production of blood cells and impair the immune system. Damage to the bone marrow can result in severe health effects, including anemia, increased risk of infection, and bleeding disorders. Therefore, protecting the bone marrow from radiation exposure is crucial in radiation therapy and other situations involving ionizing radiation.

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  • 6. 

    Features of increased ICT are following , except

    • Suture separation

    • Erosion of post.clinoid process

    • Erosion of ant. clinoid process

    • Osteosclerosis

    Correct Answer
    A. Osteosclerosis
    Explanation
    Increased ICT (Intracranial Pressure) can lead to various changes in the skull and surrounding structures. Suture separation occurs when the sutures between the bones of the skull widen due to increased pressure. Erosion of the post.clinoid process and ant. clinoid process refers to the erosion or thinning of specific bony structures in the skull base, which can be caused by increased pressure. However, osteosclerosis is the opposite of erosion; it refers to abnormal thickening or increased density of bone. Therefore, osteosclerosis is not a feature of increased ICT.

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  • 7. 

    Inverted 3 or epsilon appearance of duodenal loop in lesions of head of pancreas

    • Frostberg sign

    • Bird of prey sign

    • The pin wheel sign

    Correct Answer
    A. Frostberg sign
    Explanation
    The Frostberg sign refers to the inverted appearance of the duodenal loop in lesions of the head of the pancreas. This sign is named after the radiologist, Dr. Frostberg, who first described it. In cases where there is a tumor or lesion in the head of the pancreas, it can cause compression or displacement of the duodenal loop, leading to its inverted appearance on imaging studies. This sign is helpful in diagnosing pancreatic head lesions and can aid in determining the extent and location of the lesion.

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  • 8. 

    Meckel's diverticulum is best diagnosed by

    • X-ray

    • Ultrasound

    • CT sound

    • Tc99 pertechnetium scan

    Correct Answer
    A. Tc99 pertechnetium scan
    Explanation
    Meckel's diverticulum is a small pouch that forms in the wall of the small intestine. It is best diagnosed by a Tc99 pertechnetium scan. This scan involves injecting a small amount of radioactive material into the bloodstream, which is then absorbed by the diverticulum if present. The radioactive material can be detected using a special camera, allowing doctors to visualize the diverticulum and confirm the diagnosis. X-ray, ultrasound, and CT scan may also provide some information, but they are not as effective as the Tc99 pertechnetium scan in diagnosing Meckel's diverticulum.

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  • 9. 

    Widening of the C-loop in X-ray is diagnostic of

    • Chronic pancreatitis

    • Carcinoma head of pancreas

    • Periampullary carcinoma

    • Calculi in the ampulla of vater

    Correct Answer
    A. Carcinoma head of pancreas
    Explanation
    The widening of the C-loop in X-ray is diagnostic of carcinoma head of pancreas. This is because the C-loop refers to the duodenal loop, which is the part of the small intestine that is closest to the head of the pancreas. In cases of carcinoma in the head of the pancreas, the tumor can cause obstruction and enlargement of the C-loop, leading to the characteristic widening seen on X-ray. This finding is not typically seen in chronic pancreatitis, periampullary carcinoma, or calculi in the ampulla of Vater.

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  • 10. 

    Dye used for myelography is

    • Conray 320

    • Myodil

    • Dianosil

    • Iopanoic acid

    Correct Answer
    A. Myodil
    Explanation
    Myodil is a dye commonly used for myelography, which is a diagnostic procedure that involves injecting a contrast dye into the spinal canal to visualize the spinal cord and nerves. It helps to detect any abnormalities or blockages in the spinal cord or nerve roots. Myodil is a non-ionic oil-based contrast medium that was widely used in the past for myelography. However, it has been discontinued due to its association with adverse effects such as arachnoiditis, a painful inflammation of the spinal cord.

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  • 11. 

    Kerely B-lines represent

    • Linear fibrosis

    • Haemosiderin deposits

    • Small focal atelectasis

    • Thickened interlobular septa

    Correct Answer
    A. Thickened interlobular septa
    Explanation
    Kerely B-lines are commonly seen on chest X-rays and represent thickened interlobular septa. These septa are the connective tissue partitions that separate the lobules of the lungs. When they become thickened, it can be a sign of various lung conditions, such as interstitial lung disease or pulmonary edema. The presence of Kerely B-lines indicates an abnormality in the lung tissue and can help in diagnosing the underlying cause of the condition.

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  • 12. 

    Pleural effusion without evident lung infiltration is most often due to

    • Viral pleurisy

    • Carcinoma

    • Lymphoma

    • Tuberculosis

    Correct Answer
    A. Tuberculosis
    Explanation
    Pleural effusion without evident lung infiltration is most often due to tuberculosis. This is because tuberculosis can cause inflammation and fluid buildup in the pleural space, leading to pleural effusion. Other causes such as viral pleurisy, carcinoma, and lymphoma can also result in pleural effusion, but tuberculosis is the most common cause in the absence of lung infiltration.

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  • 13. 

    The 'String of beads' or sausage appearance of the renal artery is due to

    • Fibromuscular hyperplasia

    • Subadventitial fibroplasia

    • Medial fibroplasia with aneurysms

    • Outercoat fibroplasia with aneurysms

    • None of the above

    Correct Answer
    A. Medial fibroplasia with aneurysms
    Explanation
    The 'string of beads' or sausage appearance of the renal artery is due to medial fibroplasia with aneurysms. This condition is characterized by the thickening and narrowing of the arterial wall, leading to the formation of multiple aneurysms or dilations along the artery. The appearance of the artery resembles a string of beads or a sausage due to the alternating areas of narrowing and dilation caused by the fibroplasia. Fibromuscular hyperplasia, subadventitial fibroplasia, and outercoat fibroplasia with aneurysms are not associated with this specific appearance.

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  • 14. 

    Thickness of skull is increased in 

    • Rickets

    • Osteomalacia

    • Hyperparathyroidism

    • Thalassemia

    Correct Answer
    A. Hyperparathyroidism
    Explanation
    In hyperparathyroidism, there is an overproduction of parathyroid hormone (PTH) by the parathyroid glands. PTH plays a role in regulating calcium levels in the body. In hyperparathyroidism, the excessive PTH leads to increased bone resorption, where calcium is released from the bones into the bloodstream. This can result in weakening of the bones and an increase in bone density, including the skull. Therefore, the thickness of the skull is increased in hyperparathyroidism.

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  • 15. 

    Bead cystogram is used for the diagnosis of

    • Ca bladder

    • Stress incontinence

    • Thimble bladder

    • Diverticulum

    Correct Answer
    A. Stress incontinence
    Explanation
    A bead cystogram is a diagnostic procedure that involves injecting contrast material into the bladder to visualize its structure and function. Stress incontinence is a condition characterized by the involuntary leakage of urine during activities that increase abdominal pressure, such as coughing, sneezing, or exercising. By performing a bead cystogram, healthcare professionals can assess the integrity of the bladder and identify any abnormalities or weaknesses that may contribute to stress incontinence. Therefore, a bead cystogram is used for the diagnosis of stress incontinence.

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  • 16. 

    Hilar dance on fluroscopy is seen in 

    • ASD

    • TOF

    • VSD

    • TGV

    Correct Answer
    A. ASD
    Explanation
    Hilar dance on fluoroscopy refers to the abnormal movement of the hilar region of the lungs during breathing. This is commonly seen in patients with ASD (atrial septal defect). ASD is a congenital heart defect where there is a hole in the wall separating the two upper chambers of the heart. The increased blood flow through the defect causes the hilar region to move more prominently on fluoroscopy. This finding is not typically associated with the other conditions mentioned (TOF, VSD, TGV).

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  • 17. 

    Disseminated small nodules with calcification in chest suggest

    • Histoplamosis

    • Aspergillosis

    • Cryptococosis

    • Coccidiodomycosis

    Correct Answer
    A. Cryptococosis
    Explanation
    The presence of disseminated small nodules with calcification in the chest is suggestive of cryptococosis. Cryptococosis is a fungal infection caused by the Cryptococcus fungus, commonly found in soil contaminated with bird droppings. It primarily affects the lungs but can also spread to other organs. The development of small nodules with calcification is a characteristic finding in cryptococosis, which helps differentiate it from other fungal infections such as histoplasmosis, aspergillosis, and coccidioidomycosis.

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  • 18. 

    Following are radiological changes in Tetralogy of Fallot, except

    • Prominent cardiac apex

    • Cardiomegaly

    • Prominent pulmonary trunk

    • Normal right atrial shadow

    Correct Answer
    A. Cardiomegaly
    Explanation
    Tetralogy of Fallot is a congenital heart defect characterized by four abnormalities, including a ventricular septal defect, pulmonary stenosis, overriding aorta, and right ventricular hypertrophy. Cardiomegaly refers to an enlarged heart, which is a common finding in Tetralogy of Fallot due to the increased workload on the right ventricle. Therefore, the correct answer is "Cardiomegaly". The other options, such as a prominent cardiac apex, prominent pulmonary trunk, and normal right atrial shadow, are all associated with Tetralogy of Fallot.

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  • 19. 

    Tracheal bifurcation is best visualised on which standard view of the chest

    • Left anterior oblique

    • Left posterior oblique

    • Right anterior oblique

    • Right post. oblique

    Correct Answer
    A. Left anterior oblique
    Explanation
    The left anterior oblique view of the chest provides the best visualization of the tracheal bifurcation. This view allows for optimal imaging of the trachea as it is positioned obliquely to the left side of the chest. By angling the X-ray beam from the front and left side, the left anterior oblique view provides a clear and detailed image of the tracheal bifurcation, which is the point where the trachea splits into the left and right main bronchi.

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  • 20. 

    Earliest sign in Rheumatoid Arthritis is

    • Decreased joint space

    • Periarticular osteoporosis

    • Periarticular soft tissue swelling

    • Reduced joint space

    Correct Answer
    A. Periarticular osteoporosis
    Explanation
    Periarticular osteoporosis is the earliest sign in Rheumatoid Arthritis. This refers to the loss of bone density around the joints, which can be seen on imaging tests such as X-rays. This occurs due to inflammation and destruction of the joint tissues caused by the autoimmune response in Rheumatoid Arthritis. Other signs such as decreased joint space, reduced joint space, and periarticular soft tissue swelling may develop later in the disease process.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 14, 2013
    Quiz Created by
    Fmgs India
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