kidney
3 Video Views·Sep 30, 2023
In the name of God, the most gracious, the most merciful
Regarding Adrenal metastasis, Adrenal metastasis is an important thing
They say, is Adrenal metastasis common? Yes, it is common
Adrenal metastasis is common? Yes, it is very common
They say, it is the fourth most common site of Adrenal metastasis after liver, lung and bone
So, it is very important
Adrenal metastasis is very common
What is the most famous place for Adrenal metastasis?
Most people have a wrong idea
When they are asked, what is the most common site of Adrenal metastasis
They say, it is the lung, bronchogenic carcinoma
This is a good thing, bronchogenic carcinoma is very common
Dr. Saria likes to say that bronchogenic carcinoma is common
We can see that bronchogenic carcinoma is common
They ask you, if a person has a CT test, where does the test end?
It ends in the Adrenal, until you see the Adrenal
Because if a person has bronchogenic carcinoma for a while, he will see the Adrenal in the liver
But this is the second most common site
The lung is the second primary tumor
The first one is the melanoma
Melanoma is the most common site of Adrenal metastasis
The melanoma is 50% of Adrenal metastasis, 40% of Adrenal metastasis is the lung and breast
After that, the adrenergic carcinoma is 10% of Adrenal metastasis
Adrenomas look like a normal adenoma
Adults have normal adenoma-like areas
Adults have necrosis and hemorrhage
The first problem we face is the difference between the two
The scenario is like this
The patient has lung cancer and Adrenal lesion
Is Adrenal lesion a metastatic of lung cancer or an adenoma?
This is the problem we face
Why?
First, Adrenal lesion is a common site of Adrenal metastasis
Second, Adrenomas are very common
There is a lot of incidental findings
It is very normal to find a patient with lung cancer and Adrenal lesion
There is no problem at all
It is also normal to find a patient with lung cancer and Adrenal metastasis
We will not be able to distinguish between the two instances
This is the problem we face
How can we solve this problem?
The solution to this problem depends on the characteristic feature of the adenoma
We said that if the house field unit is less than 10, it is a lipid-rich adenoma
There is no doubt about that
First, we measure the house field unit without
And we measure if it is less than 10, it is a lipid-rich adenoma
This is the first thing
The second solution to the problem
If the house field unit is more than 10, it is a lipid-poor adenoma
If the house field unit is less than 10, it is a lipid-poor adenoma
There is also a problem
There are times when hypervascular metastasis
They have the same characteristics of the lipid-poor adenoma
When we calculate the absolute and the relative washout
We find that they have the same characteristics of the lipid-poor adenoma
So, we get confused
The contrast washout is not very specific
There are cases like the hypervascular metastasis
It can have a rapid washout
Sometimes, they refer to this topic
Honestly, I have seen this topic only in one website
It is called Radiology Assistant
I have not seen any other website that relies on this theory
But Radiology Assistant is a website that is mentioned in it
So, if it says something, it is probably good
So, what does it do?
They said that we depend on two things
On the morphology and the density of the lesion
They said that we make a formula like this
We will collect a point
I will tell you the letters
We will collect a point from it
If we find more than 7 points
It is probably a metastasis
Nothing else
Go for metastasis
First, calculate the unenhanced house fit unit of the lesion
And divide it by 10
Then, put it here
This is the first thing
Then, the size in centimeters
And put it here
Then, combine these two
Then, check the contour blurring
If you check the margin of the lesion
Is it well-defined or ill-defined?
If you find it ill-defined, add 2
Then, check the homogeneity of the lesion
If you find it inhomogeneous, add 1
If it is homogeneous, do not add anything
If the total is more than 7
It is a highly accurate metastatic lesion
This formula is good
It is found in the cardiology section
And it looks good
So, what do I do?
I depend on the density and morphology of the two
And I collect these points
If I find that it is higher than 7
It is probably a metastatic adrenal
This is an example of the melanoma adrenal
Melanoma follows the adrenals in a very large shape
Yes, it is very large
And it is related to the genitals
So, this is related to the adrenal adenoma
There is a very good thing
It tells me a nice information
It is true that the adrenal is a common site of metastases
But when the tumor sends to the adrenal
It usually sends something else
What does it mean?
Adrenal metastases are rare to be isolated
Or to be single
What does it mean?
If I find a long lesion
And this long lesion decided to send to the adrenal
It usually has something else
So, if you find this long lesion
You will find adrenal with liver, bone, etc
On the contrary
If you find isolated adrenal lesion
In a tumor of lung cancer
It is less likely to be metastatic
So, if I find only adrenal
No liver or spleen
And nothing else
If I find only adrenal lesion
It usually is not metastatic
Because if it is metastatic
It usually has something else
So, it is less likely
So, I told you all the differences between adenoma and metastasis
So, you can know
Now, I finished the adrenal
And we will go to the kidney
There is a big part of it is anatomical
This is an introduction
It has an important part
The important part will be next time
It is very important
This is the adrenal kidney lesion
The lung is the sender of the adrenal
Even if he has lung cancer
If he has long lung cancer
If he has kidney lesion in the adrenal
It is a primary lesion
If he has lung cancer
It is the sender of the adrenal
It is not the opposite
The kidneys are
The first thing
It is a retro-protein structure
A bean shaped retro-protein structure
Like a bean
Where are they?
This is the lateral border
It is called the muscle
They are on the right side
It is called the gluteus
It is important
The left kidney is different than the right
The left kidney is in front of the spleen
It is in front of the pancreatic pill
It is in front of the splenic fiction
The right kidney is in front of the liver
It is in front of the second party of the adrenal
It is in front of the hepatic fiction
The kidney is a capsule
It is a very adrenal capsule
If there is a hematoma under the capsule
It will do a very special thing
It will do an indentation
To the capsule
To the kidney
If there is a lesion
It will do an indentation
To the surface of the kidney
To know that it is a sub-capsule
It is not a perinephric
We took it the first time
There is a perinephric space
If there is a hematoma
In the perinephric space
It will do an indentation
To know if it is in the perinephric space
Or in the sub-capsule
If there is a lesion
Between the fluid collection
It will know that it is a sub-capsule
If there is a fluid
Without indentation
It will know that it is a perinephric hematoma
The capsule will be stuck
On the kidney
The kidney
As an interior structure
We know that it is made up of
An important part
The outer part is called the cortex
And the inner part is called the medulla
The cortex
Contains the glomeruli
We know that the main unit of the kidney
Is the nephron
This nephron is made up of the glomeruli
Made up of the proximal conveyor tube
And the lobe panel
Then the conveyor tube
Then the collecting duct
The glomeruli is in the cortex
This is the outer portion of the kidney
This is the cortex of the kidney
This is the medulla
The inner portion is the medulla
This medulla is made up of
Triangles
They call them renal pyramids
It contains the collecting duct
Of the nephron
Between the renal pyramids
There is an extension
From the cortex
To the medulla
They call it the renal column
The renal column is an extension
From the cortex
Between the renal pyramids
And the medulla
The renal pyramids
Have an apex
They call it the renal papilla
The renal pyramids
Open in the calyx
The calyx of the kidney
There is a minor calyx
The minor calyx collects
The major calyx collects
To make the pelvis
This is the anatomy of the kidney
The anatomy of the kidney is made up of
The cortex
The medulla
The pyramids
The pyramids are separated by
The renal column
The renal pyramid
The renal pyramid opens in the calyx
This is the anatomy of the kidney
What is the importance of this?
The importance of this is
In the CT
Like the other
In the CT
The kidney is like the liver
It has phases
We do the triphasic kidney
And we do the triphasic liver
But the difference is in the timing
The triphasic kidney is in the non-contrast
Then we have a phase
From 25 to 70 seconds
We call it corticomedullary phase
From 25 to 70 seconds
Then we have a paraphysic phase
From 80 to 180 seconds
And after 180 seconds we call it excretory phase
This is the view
This is the non-contrast study
Before we go to the CT
Then we go to the CT
We have corticomedullary phase
Corticomedullary phase
Corticomedullary

