What is hypertrophied column of Bertin?
A hypertrophied column of Bertin is one of the congenital causes of renal pseudo tumor. The columns of Bertin are normal structures seen in the renal cortical tissue. In 1744, French anatomist Exupere Joseph Bertin explained that the renal cortex extended in radial fashion surrounding the renal pyramids.
What is Bertin?
: any of the masses of cortical tissue extending between the sides of the renal pyramids of the kidney as far as the renal pelvis. — called also Bertin’s column, renal column.
Where is column of Bertin present?
The renal column (or Bertin column, or column of Bertin) is a medullary extension of the renal cortex in between the renal pyramids. It allows the cortex to be better anchored. Each column consists of lines of blood vessels and urinary tubes and a fibrous material.
Where is the renal columns located?
Internal Anatomy The renal columns are connective tissue extensions that radiate downward from the cortex through the medulla to separate the most characteristic features of the medulla, the renal pyramids and renal papillae.
What is junctional parenchymal defect?
Junctional parenchymal defect (JPD) is a triangular or linear hyperechoic structure in the anterosuperior or posteroinferior surface of the kidney. The intermediate septum is a band-like cortex, running obliquely in the central echo complex.
What does column of Bertin mean?
Columns of Bertin represent the extension of renal cortical tissue which separates the pyramids, and as such are normal structures. They become of radiographic importance when they are unusually enlarged and may be mistaken for a renal mass (renal pseudotumor).
What is renal pseudotumor?
A renal pseudotumor is a mass that will simulate a tumor on imaging but is composed of non-neoplastic tissue.
What are the parts of nephron?
Each nephron is composed of a renal corpuscle (glomerulus within Bowman’s capsule), a proximal tubule (convoluted and straight components), an intermediate tubule (loop of Henle), a distal convoluted tubule, a connecting tubule, and cortical, outer medullary, and inner medullary collecting ducts.
What is the nephron?
Each of your kidneys is made up of about a million filtering units called nephrons. Each nephron includes a filter, called the glomerulus, and a tubule. The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes.
How is the junctional parenchymal defect visualized sonographically?
Ultrasound. It can be seen as a triangular echogenic cortical defect, frequently seen in upper lobe parenchyma. The defect is the extension of sinus fat into the cortex, usually at the border of the upper pole and interpolar region of the kidney.
What are the radiographic features of a hypertrophied column of Bertin?
Radiographic features. Key to correct identification of a hypertrophied column of Bertin is the fact that it is in continuity with, and of similar appearance to, normal renal cortical parenchyma, and that the renal outline is preserved. They are usually located in the mid-portion of the kidney and are more commonly found on the left side 4.
Can congenital hypertrophied columns of Bertin mimic a renal mass lesion?
The patient was reassured, and he was relieved of his anxiety. This case is highlighted because congenital hypertrophied columns of Bertin can mimic a renal mass lesion.
What is column of Bertin and renal pseudo tumor?
Column of Bertin & Renal Psuedo Tumor. A hypertrophied column of Bertin is one of the congenital causes of renal pseudo tumor. The columns of Bertin are normal structures seen in the renal cortical tissue. In 1744, French anatomist Exupere Joseph Bertin explained that the renal cortex extended in radial fashion surrounding the renal pyramids.
What causes Bertin column to become hypertrophic?
Hypertrophied columns of Bertin are actually not hypertrophic but they occur due to an incomplete fusion of the fetal lobes. They result from the fusion of two adjacent septa into a large column with double thickness [8].