Correct Answer - B
Tc99m-DTPA diethylene Triamine pentothenic acid is an agent of choice widely used in
measuring GFR.
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Correct Answer - B
Answer- B. CT Scan
CT Scan is superior to plain radiographs in detection of minute
quatities of pneumoperitoneum
Thus CT Scan is regarded as the most sensitive investigation for
detection of minute quantities of intraperitoneal gas.
Best radiographic view for pneumoperitoneum is Chest x-ray. It is usually the first investigation of choice.
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Correct Answer - D
Answer- D. 20
Anamoly Scan is done between 18-21 weeks of pregnancy. It is also called as mid pregnancy or 20-week scan.

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Correct Answer - A
Ans. ASD
Fluoroscopic examination done in a patient with ASD shows hilar
dance sign due to pulsation of central pulmonary artery.
CXR features of ASD:
There is no enlargement of left atrium except in few cases of
Lutembacher syndrome.
The heart in ASD is sometimes displaced to the left.
The ascending aorta and its arch tends to appear smaller than
normal, probably due to rotation of the ascending aorta by enlarged
right atrium and right ventricle causing sagittal alignment of the
aortic arch. Kerley B lines in a patient with ASD should always
suggest an associated mitral valve abnormality(Lutembacher
syndrome).
The Goose neck deformity is seen in ASD on cardioangiography.
Ref: Clinical Diagnosis of Congenital Heart Disease By M. Satpathy
page 78, Radiodiagnosis, Nuclear Medicine, Radiotherapy and
Radiation Oncology By Bipin Valchandji Daga page 139.

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Correct Answer - C
Ans. Small bowel obstruction
String of beads sign is virtually diagnostic of small bowel obstruction

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Correct Answer - D
D i.e. TAPVC
Due to dilation of SVC (superior vena cava) & left vertical vein,
TAPVC (total anomalous pulmonary venous connection / return) of
supra diaphragmatic variety shows double contour/ "Figger of 8"/
Snowman configuration of cardiac silhouetteQ.

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Correct Answer - B
Answer- B. Membrane in twin pregnancy
'T sign' refers to appearance of the inter-twin membrane in a
monochorionic twin pregnancy.

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Correct ans.A laproscopy

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Correct Answer - B
Answer- B. Air under diaphragm
Above clinical picture is suggestive of perforated peptic ulcer, Which
is the most common cause of pneumoperitoneum (air under
diaphragm).

Perforation results in pneumoperitoneum and the best view to see pneumoperitoneum is chest x-ray in erect position which detects air under the domes of diaphragm.
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Correct Answer - A

Chronic pancreatitis REF: Sutton's Radiology 7th edition volume 1
page 798, Sabiston textbook of surgery 18th ed chapter 5
Chronic pancreatitis is characterized by irregularities of the pancreatic ducts, ductal strictures, and areas of duct dilation. The
major as well as the side-branch ducts may be involved. For
unexplained reasons, some patients with chronic pancreatitis
develop dilated main pancreatic ducts (large duct disease), whereas others retain ducts of normal or even smaller than normal caliber (small duct disease). Some patients with chronic pancreatitis can be shown to have major ducts that have the appearance of a "chain of lakes" or a "string of pearls" that is the result of segments of dilated duct separated by areas of ductal stricture

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