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Question Bank – Dermatology

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Question 1 of 18

1. Question
What is the minimum recommended frequency to perform a dermatologic ultrasound examination?
- 18 MHz
- 10 MHz
- 15 MHz
- 22 MHz
Correct

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Question 2 of 18

2. Question
The limitations of dermatologic ultrasound include the detection of the following conditions, except:
- pigments
- lesions measuring < 0.1 mm
- epidermal-only lesions
- calcifications
Correct

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Question 3 of 18

3. Question
The following statements are true, except:
- The sequence of the dermatologic ultrasound examination includes a greyscale, Color Doppler and spectral curve analysis
- The reverberation artifact is seen in epidermal cysts
- In the settings it is recommended to use low wall filters
- A towel or pad is recommended to examine the nails of the thumbs
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Question 4 of 18

4. Question
Regarding the ultrasonographic characteristics of the normal skin, the following statements are true, except:
- The dermis has similar thickness in all the corporal/body regions
- The epidermis of the plantar region shows a hyperechoic bilaminar structure
- The SLEB generates a hypoechoic band in the upper dermis
- The blood flow of the nail runs attached to the nail plate
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Question 5 of 18

5. Question
Most of the normal hair tracts of the scalp present the following morphology
- Bilaminar hyperechoic
- Bilaminar hypoechoic
- Trilaminar hyperechoic
- Monolaminar hypoechoic
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Question 6 of 18

6. Question
The examination of the nail allows us to observe all of the following, except:
- The nail matrix cells
- The dorsal and ventral nail plate
- The nail bed
- The proximal nail fold
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Question 7 of 18

7. Question
Intact epidermal cysts appear on ultrasound as:
- Hyperechoic with hypoechoic focal spots
- Hypoechoic and slightly heterogeneous
- Hyperechoic with posterior acoustic shadowing artifact
- Hypoechoic with posterior reverberance artifact
Correct

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Question 8 of 18

8. Question
Pilomatrixomas are characterized by what sonographic pattern?
- Hyperechoic rim and hypoechoic center
- Hyperechoic rim and anechoic center
- Hypoechoic rim and hyperechoic center
- Hypoechoic rim and anechoic center
Correct

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Question 9 of 18

9. Question
Regarding Fibrolipomas, the following statements are true except
- Tend to follow the axes of the skin layers
- Morphology is predominantly hyperechoic
- They have hyperechoic septae
- They are oval-shaped
Correct

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Question 10 of 18

10. Question
Subungual abscesses show on ultrasound as a:
- Hyperechoic band
- Anechoic band
- Hyperechoic with focal hypoechoic spots
- Anechoic with focal hyperechoic spots
Correct

Incorrect
Question 11 of 18

11. Question
Regarding myxoid cysts, the following statements are true, except:
- They show as hyperechoic oval-shaped periungual structures
- They tend to connect to the distal interphalangeal joint
- Usually, they are associated with osteoarthrosis
- They may compress the matrix region
Correct

Incorrect
Question 12 of 18

12. Question
On ultrasound, glomus tumors features include all of the following, except:
- Oval-shaped hypoechoic structure
- Scalloping of the bony margin of the distal phalanx
- Hypervascularity
- Calcifications
Correct

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Question 13 of 18

13. Question
The ultrasound features of basal cell carcinoma include these, except:
- Hyperechoic lesion
- Hyperechoic spots
- Anechoic spots
- Hyperechoic border
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Question 14 of 18

14. Question
The typical characteristics of a malignant lymph node include, except
- mostly central vascularity
- round shape
- internal hypoechoic nodules
- loss of the definition of the medulla
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Question 15 of 18

15. Question
Regarding melanoma, the following statements are true, except:
- In-transit metastases are located less than 2 cm from the primary tumor
- In-transit metastases show on ultrasound as hypoechoic subcutaneous nodules with hypervascularity
- Melanomas appear as hypoechoic and sometimes fusiform lesions
- Lesional vascularity is high in melanomas
Correct

Incorrect
Question 16 of 18

16. Question
Plantar warts appear on ultrasound as:
- hyperechoic fusiform shaped
- hyperechoic with hypoechoic spots
- hypoechoic fusiform shaped
- hypoechoic with hyperechoic spots
Correct

Incorrect
Question 17 of 18

17. Question
Regarding hidradenitis suppurativa, the following statements are true, except:
- There is widening of the hair follicles
- Fluid collections are connected to the base of dilated hair follicles
- Fistulous tracts show hyperechoic fragments of hair tracts
- The pseudocysts are hyperechoic round-shaped dermal structures
Correct

Incorrect
Question 18 of 18

18. Question
Morphea is characterized by the following ultrasound features, except:
- decreased echogenicity of the dermis
- increased echogenicity of the subcutaneous tissue
- decreased echogenicity of the subcutaneous tissue
- loss of the border between dermis and subcutaneous tissue
Correct

Incorrect

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