Question:
Echogenicity of the organs at the time of ultrasound examination in dogs, in decreasing order is
(A) Spleen
(B) Prostate
(C) Renal medulla
(D) Renal cortex
Choose the correct answer from the options given below:
Echogenicity of the organs at the time of ultrasound examination in dogs, in decreasing order is
(A) Spleen
(B) Prostate
(C) Renal medulla
(D) Renal cortex
Choose the correct answer from the options given below:
(A) Spleen
(B) Prostate
(C) Renal medulla
(D) Renal cortex
Choose the correct answer from the options given below:
Show Hint
To remember relative echogenicity in dogs, use the classic mnemonic (from least to most echogenic/brightest):
"My Cat Loves Sunny Places"
- M = Medulla (Renal medulla - darkest)
- C = Cortex (Renal cortex)
- L = Liver
- S = Spleen
- P = Prostate Pancreas (brightest)
"My Cat Loves Sunny Places"
- M = Medulla (Renal medulla - darkest)
- C = Cortex (Renal cortex)
- L = Liver
- S = Spleen
- P = Prostate Pancreas (brightest)
Updated On: Jul 23, 2026
- (A), (B), (D), (C).
- (C), (B), (D), (A).
- (C), (D), (A), (B).
- (B), (A), (D), (C).
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Echogenicity refers to the ability of a tissue to reflect ultrasound waves.
Tissues that reflect more waves appear brighter (hyperechoic), while tissues that reflect fewer waves appear darker (hypoechoic/anechoic) on the monitor.
Understanding the relative echogenicity of abdominal organs is crucial for identifying abnormal tissue changes in veterinary ultrasonography.
Step 2: Detailed Explanation:
In dogs, the relative echogenicity of normal abdominal tissues under identical gain settings follows a standardized, well-established hierarchy.
Let us evaluate the organs from the most echogenic (brightest) to the least echogenic (darkest) in a decreasing order:
1. Prostate (B):
The normal prostate gland is highly echogenic, exhibiting a homogeneous, moderately hyperechoic (bright) texture compared to other abdominal organs.
Therefore, (B) is the most echogenic.
2. Spleen (A):
The spleen is highly echogenic, with a very fine, homogeneous, hyperechoic texture.
It is typically brighter than the liver and renal parenchyma.
Therefore, (A) is intermediate-high.
3. Renal Cortex (D):
The renal cortex is less echogenic (darker) than the spleen and liver, but is significantly brighter than the adjacent renal medulla.
Therefore, (D) is intermediate-low.
4. Renal Medulla (C):
The renal medulla contains collecting ducts and fluid-filled tubules, making it highly hypoechoic (very dark) to almost anechoic compared to the cortex.
Therefore, (C) is the least echogenic.
Thus, the correct decreasing order of echogenicity (from brightest to darkest) is:
Prostate (B) $\rightarrow$ Spleen (A) $\rightarrow$ Renal cortex (D) $\rightarrow$ Renal medulla (C).
Step 3: Final Answer:
The correct option is (D), representing (B), (A), (D), (C).
Echogenicity refers to the ability of a tissue to reflect ultrasound waves.
Tissues that reflect more waves appear brighter (hyperechoic), while tissues that reflect fewer waves appear darker (hypoechoic/anechoic) on the monitor.
Understanding the relative echogenicity of abdominal organs is crucial for identifying abnormal tissue changes in veterinary ultrasonography.
Step 2: Detailed Explanation:
In dogs, the relative echogenicity of normal abdominal tissues under identical gain settings follows a standardized, well-established hierarchy.
Let us evaluate the organs from the most echogenic (brightest) to the least echogenic (darkest) in a decreasing order:
1. Prostate (B):
The normal prostate gland is highly echogenic, exhibiting a homogeneous, moderately hyperechoic (bright) texture compared to other abdominal organs.
Therefore, (B) is the most echogenic.
2. Spleen (A):
The spleen is highly echogenic, with a very fine, homogeneous, hyperechoic texture.
It is typically brighter than the liver and renal parenchyma.
Therefore, (A) is intermediate-high.
3. Renal Cortex (D):
The renal cortex is less echogenic (darker) than the spleen and liver, but is significantly brighter than the adjacent renal medulla.
Therefore, (D) is intermediate-low.
4. Renal Medulla (C):
The renal medulla contains collecting ducts and fluid-filled tubules, making it highly hypoechoic (very dark) to almost anechoic compared to the cortex.
Therefore, (C) is the least echogenic.
Thus, the correct decreasing order of echogenicity (from brightest to darkest) is:
Prostate (B) $\rightarrow$ Spleen (A) $\rightarrow$ Renal cortex (D) $\rightarrow$ Renal medulla (C).
Step 3: Final Answer:
The correct option is (D), representing (B), (A), (D), (C).
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