The renal sinus is a cavity within the kidney which is occupied by the renal pelvis, renal calyces, blood vessels, nerves and fat. The renal hilum extends into a large cavity within the kidney occupied by the renal vessels, minor renal calyces, major renal calyces, renal pelvis and some adipose tissue.
What is the renal sinus?
The renal sinus is a fatty compartment located within the medial aspect of the kidney. It communicates with the perinephric space. It contains the renal hilum and is bordered by renal parenchyma laterally.
What is the main function of renal sinus?
Fatty compartment along the hilus of kidney that invests the renal calyces, pelvis, blood vessels, lymphatics and nerves (image A) & (image B). Renal sinus abuts the renal cortical columns of Bertin without a connective tissue interface. Important landmark for staging renal carcinoma (extrarenal extension).
What fills the renal sinus?
The remainder of the sinus is filled with adipose tissue, lymphatic channels, nerve fibers of the autonomic nervous system, and varying quantities of fibrous tissue (,1–,4). Therefore, various pathologic conditions can occur in the renal sinus from any of its constituents.
What three structures are located in the renal sinus?
The kidney parenchyma surrounds the centrally located, hyperechoic fatty renal sinus, which contains the renal pelvis, calyces, major branches of the renal artery and vein, and lymphatic vessels.
What is the right renal sinus?
The renal sinus is a cavity within the kidney containing the pelvis and calyces, adipose tissue, kidney vessels, nerves and lymphatic tissues, and is a continuation of the renal hilum.
What is the echogenicity of the renal sinus?
The echogenicity of the renal sinus is variable, ranging from echogenic to anechoic. Hypoechoic fat collection in the renal sinus is not infrequent. In extreme cases, its sonographic finding can be similar to the anechoic appearance classically described for peripelvic cysts or hydronephrosis.
What is the difference between renal pelvis and renal sinus?
renal pelvis, enlarged upper end of the ureter, the tube through which urine flows from the kidney to the urinary bladder. The pelvis, which is shaped somewhat like a funnel that is curved to one side, is almost completely enclosed in the deep indentation on the concave side of the kidney, the sinus.
Is renal sinus hyperechoic?
The renal sinus is hyperechoic and is composed of calyces, the renal pelvis, fat and the major intrarenal vessels. In the normal kidney, the urinary collecting system in the renal sinus is not visible, but it creates a heteroechoic appearance with the interposed fat and vessels.
What is the entrance of the renal sinus?
renal hilus
The renal hilus, located medially, is the opening into the renal sinus and transmits the renal artery, vein, nerves and is the location of the renal pelvis (Fig.
Is echogenic kidneys normal?
Echogenic kidneys can be a normal variant but are also seen in association with renal dysplasia, chromosomal abnormality, adult and fetal polycystic disease, Pearlman syndrome, Beckwith–Wiedemann syndrome, and CMV infection. The incidence of echogenic kidneys has been estimated at 1.6 cases per 1000 sonograms.
Is an echogenic kidney bad?
Echogenic kidneys is considered a “nonspecific finding” because it doesn’t indicate a specific condition or diagnosis, but rather the possibility of a kidney abnormality. The most frequent causes of fetal echogenic kidneys include: Polycystic kidney disease (autosomal dominant and autosomal recessive)
What does renrenal sinus ultrasonography look like?
Renal Sinus ultrasonography is considered hyperechoic when compared to renal parenchyma. During the Ultrasound, the renal sinus, if normal, is seen as a region with enhanced echoes with varied contours. It appears like this because of its fat-parenchyma interface.
What structures are found in the renal sinus?
The renal sinus is sur- rounded by the kidney parenchyma laterally. The major branches of the renal artery and vein along with the major and minor calices of the collecting system are located within the renal sinus. The remainder of the sinus is filled with adipose tis- sue, lymphatic channels, nerve fibers of the auto-
What are the main parts of the kidney diagram?
Kidney Diagram: An illustration of one or both of the kidneys. These diagrams regularly show main parts of the kidney: Renal sinus. Renal pyramid. Calyces. Medulla. Cortex. Major and minor calyx.
What is another name for the sinus renalis?
Renal sinus Synonyms. The structure is also referred to by various other names like: Sinus of kidney. Sinus renalis (in Latin) Sinus renal (in French)
