How are kidney development anomalies formed and why do additional pathologies develop?

Kidney anomalies and their structure are rare. All known deviations are classified into several groups: anomalies of quantity, location, structure and magnitude.

Anomalies of

The most common of these deviations is a doubled kidney - it is located in one capsule, and both parts can be separated - the upper half, usually smaller than the lower one. Each of the halves has a ureter and a pelvis. The upper part is more often affected by disease. Sometimes the ureters that depart from such an organ fall separately into the bladder.

Anomalies of quantity account for about a third of all malformations. The least common cases are the presence of a third kidney, not fused with others.

Congenital absence of one organ is rare. When aplasia, as a rule, there is no corresponding ureter. Therefore, the anomaly can be diagnosed with cystoscopy.

This is important!

In unclear situations, retrograde pyelography, renal angiography is used to diagnose. The only organ in these patients is slightly enlarged in size. Two-sided aplasia is almost never found and is considered a vice incompatible with life.

Anomalies in the size and location of

Hypoplasia is an inherent decrease in size, which is often supplemented by the development of inflammation and provokes renal hypertension.

Such anomalies of the kidneys account for approximately 25% of all the vices of this organ. It is classified iliac. Lumbar and pelvic dystopia. Sometimes the kidney is located in the sternum.

One-fourth of all the malformations of the kidneys is a dystopia - its congenital malposition. Sometimes it can be located even in a small pelvis and during the operation it is sometimes perceived as a pelvic tumor. In the pelvic type of dystopia, the ureter is very short, and the kidney vessels fit in front of the organ.

Omission of the kidney or differently nephroptosis causes severe pain in the lumbar region resembling colic, in rare cases, hematuria. In general, nephroptosis affects the female body and is diagnosed during palpation and X-ray examination. When the kidney feels outside its bed and moves freely, then this pathology is called wandering.

If one of the kidneys moves to the opposite side, then this anomaly is called cross dystopia, while the ureter crosses the middle line of the body.

Dystopia is usually supplemented with pathologies of blood vessels, pathologies of the form of the kidneys and their bowl-pelvic system.

This is important!

Dystopia is detected by palpation, but the diagnosis is confirmed by an X-ray examination. Differential diagnostics with nephroptosis is required.

Anomalies in the structure of

Congenital malformation of the formation of the kidney parenchyma provokes the development of bilateral pathology - polycystosis. Due to abnormal embryonic development, incomplete fusion of the nephron tubules begins, and the proximal sections are transformed into small cysts.

With the development of such a disease, you can feel painful, enlarged kidneys with a bumpy surface. Polycystic pain causes pain in the lumbar region, bleeding, increased blood pressure and kidney failure. The pressure of the cysts on the healthy renal parenchyma provokes a violation of blood flow and the secondary form of pyelonephritis.

Also to the anomalies of the structure of the kidneys are the changes in shape:

• Lobate
• Oval
• Flattened.

This is important!

Diverse deviations in the vascular supply of the kidneys, which form difficulties in conducting a surgical procedure. In 25 - 30% of cases, the presence of an additional artery of the kidney is detected, which approaches its lower pole, then crosses with the anterior ureter and often becomes the cause and progression of hydronephrosis.

Also to the anomalies of the structure are solitary cysts or cysts with serous filling

Did you like the article? Share with friends and acquaintances: