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Showing page 1 of 21 (182 total shorts) — subject: "Radiology"
#1 Radiology
The "step ladders" effect in PA views of the skull is found in sickle cell anaemia.
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Answer
"Step ladders" effect in PA views of skull is found in 
 1. Sickle cell anaemia
 2. Ameloblastoma
 3. Osteogenic sarcoma
 4. Ewing"s sarcoma
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#2 Radiology
The base of the skull can be viewed by both Towne's projection and Submentovertex.
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Answer
Base of skull can be viewed by 
 1. Towne"s projection
 2. Submentovertex
 3. PA view of skull
 4. Both A and B
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#3 Radiology
Gamma camera in Nuclear Medicine is used for measuring the radioactivity.
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Answer
Gamma camera in Nuclear Medicine is used for 
 1. Organ imaging
 2. Measuring the radioactivity
 3. Monitoring the surface contamination
 4. RIA
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#4 Radiology
Double intensifying screens with screen film significantly reduce exposure time by amplifying the X-ray effect. The screens convert X-ray photons to light photons, which expose the film more efficiently than direct X-ray exposure. This reduces radiation dose to the patient while maintaining image quality.
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Answer
Double intensifying screen and screen film are used in extraoral radiographs to
1) Reduce density
2) Reduce contrast
3) Reduce exposure time
4) Reduce secondary radiation
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#5 Radiology
Zygomatic arch fractures are best viewed in Submentovertex.
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Answer
Zygomatic arch fractures are best viewed in 
 1. Occipitomental view
 2. Lateral oblique
 3. Submentovertex
 4. Leteral view
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#6 Radiology
Radiographic Features of Enamel Hypoplasia

Defect Type: Quantitative defect involving missing or thin enamel.

Appearance: Pits, missing enamel, or grooves show up as dark or radiolucent areas on the tooth crown.

Clinical vs. Radiographic: While clinical inspection may show brown/yellow horizontal spots or staining, the structural absence/thinning of the high-density enamel layer creates localized radiolucencies on X-rays
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Answer
Hypoplastic defects in the enamel appear in radiographs as
1) Brown spots running horizontally
2) Radiolucent areas
3) Sclerotic areas over the surface of a tooth
4) Radiopaque areas
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#7 Radiology
Characteristic of screen film used for cephalometric radiograph is low contrast, wide latitude.
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Answer
Characteristic of screen film used for cephalometric radiograph 
 1. High contrast, medium-speed
 2. Low contrast, faster speed
 3. Low contrast, wide latitude
 4. High contrast, high speed
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#8 Radiology
All of the following form radiolucent stones except orotic acid.
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Answer
All of the following form radiolucent stones except 
 1. Xanthine
 2. Cysteine
 3. Allopurinol
 4. Orotic acid
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#9 Radiology
Salt and pepper appearance in MRI of the salivary gland is suggestive of Sjogren syndrome.
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Answer
Salt and pepper appearance in MRI of salivary gland is suggestive of 
 1. Sjogren syndrome
 2. Thalassaemia
 3. Mumps
 4. Salivary gland tumour
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