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2 newborns with antenatal diagnosis of renal disease, oligohydramnios

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All right, next two cases are three A and three B. Cases are,

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again, two, um, similar types of cases.

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And uh,

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case three A is zero day old female with antenatal diagnosis of renal disease

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and oligo had ream and case B is zero day old male with

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antenatal diagnosis of renal disease.

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So let's look at the images now.

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Alright, um, this is a,

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this is a boy. This is a, uh, second case, actually three B.

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This is a boy whose right kidney demonstrates multiple small cysts.

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These look simple and there is some hy nephrotic component. As you can see,

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there is dilation of the pelvis, dilated pelvis here.

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That's the bladder. The bladder is super thick. This is poly catheter,

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which has decompress the bladder. And now we are looking at the left kidney.

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The left kidney also shows severe dilatation of the left renal pelvis.

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Now the difference between the right and the left kidneys, um,

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are increased ity of the renal chy as well as severe

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hydronephrosis as is seen here. This is Kelly seal dilatation,

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which you can see very well. However,

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there are tiny cysts which are not so apparent as we are seen in the right

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kidney.

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So here we are dealing with both the kidneys are abnormal.

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The right kidney shows multiple cysts, which are simple in nature.

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The left kidney shows increased ity of the renal parenchyma with some tiny cysts

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and severe HydroOne nephrosis. That's part of the ureter,

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part of the left ureter, which you are saying there.

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Then we will look at the girl's ultrasound,

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who is also brand new baby. And this is the right kidney.

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This right kidney looks exactly like the other one. Uh,

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this whole right kidney is occupied by multiple cysts of varying sizes.

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They all look simple. There are no, uh,

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features of complications like septations, debes, et cetera.

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This is the urinary bladder, which has a Foley, also decompressed.

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And now we are looking at the left kidney,

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which looks exactly like the right kidney and is replaced by multiple cysts of

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varying sizes. Okay?

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There is no in this baby.

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So we are dealing with, uh,

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two patients who have cysts in the kidneys or

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damaged kidneys with increased immunogenicity.

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Now I'm going to show you the x-ray

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On the first baby you can see the lungs are hypoplastic.

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There is pneumothoraxes,

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and the shape of the chest is bell-shaped.

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Remember, this baby was born to the mother who had oligo hyd,

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and this is the second baby. Similar situation.

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You have the pneumothoraxes bilaterally and the lungs look very

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small in size. The size of the chest wall is also small.

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So here we are dealing with two babies who have bilateral renal disease,

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as well as bilateral hypoplastic lungs, bilateral pneumothoraxes.

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So their lungs are not well developed because the kidneys are not functioning

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well. So now let's, uh, bring the poll question.

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So we have the option of pot sequence, autosomal, resistive,

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polycystic kidney disease, bilateral multicystic disease,

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or bilateral cystic neoplasms.

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Pot sequence is the correct answer. So the babies,

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um, were born to the moms who have oligo amnio.

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They, they have pulmonary hypoplasia, hypoplastic lungs, bell-shaped wall,

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and they present with pneumothoraxes.

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As soon as the baby takes the first breath, there is not enough lung parenchyma,

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and the lung expansion is short of reaching the chest wall.

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So there are the most common complication is pneumothorax.

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Powder sequence is consistent.

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Withher amias is one of the important components.

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So these babies can have club feet because there is no enough volume for them to

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move in neutral. They can have contractors,

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low setters and hypertherm.

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Most of these babies have I U G R and the causes of, uh,

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potter sequence is usually, um, the,

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the renal disease, which affects both the kidneys.

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So autism and ro resistive polycystic kidney disease,

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posterioral valves leading to, um,

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b common tract obstruction, um,

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bilateral hydrosis, bilateral multicystic, dysplastic kidney,

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bilateral renal agensis, and rarely twin, twin transfusion syndrome,

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where one of the babies is a donor who gets the, uh,

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hypoplastic lungs as well as, uh, uh, oligo hyperemia.

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So the first baby, the boy had posterior valve,

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and the girl has multicystic dysplastic kidneys.

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Multicystic dysplastic kidneys is non heritable.

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So they are unfortunate kids who get this condition. Unfortunately,

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the multicystic dysplastic kidneys is not that rare and is seeing commonly

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in the female, uh, female newborn babies.

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Multicystic kidneys can be diagnosed in tro by ultrasound

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when they're born. We usually try to do the, um,

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regram to confirm there is some functioning tissue.

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If there is only one unilateral multicystic dysplastic kidney that has a better

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prognosis, that function, that nonfunctioning kidney usually invol.

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The other kidney compensates and the patient can have normal renal function.

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Now, multicystic dysplastic kidneys rarely can get infected.

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They can be persistent enlargement and they can present with renal vascular

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hypertension. In that case, they need to be surgically removed.

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Bilateral multicystic dysplastic kidneys can be seen in patients who have

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different types of syndromes like mekel, Hubert Jaws, vegar syndrome, et cetera.

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When you have only one multicystic dysplastic kidney,

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you have to closely look at the other kidney because the contra renal anomaly is

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very common entities, especially patic junction obstruction, uh,

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ent insertion of the ureter at the, uh, junction.

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The junction and reflux, those are the common things.

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Posterioral valves, they are seen only in boys. Again,

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this is a sporadic condition. However, some in some families like uh,

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h p s is seen in families. Same thing with posterioral valves. You can see,

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uh, common, um,

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entity in some of the families is posterioral valve presentation.

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Posterioral valves can be seen in downs, babies,

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and because of the other associations,

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whatever the other associations are with down syndrome like breia,

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cranial spinal defects, et cetera,

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can be seen in patients who have posterioral valves.

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And innately you can diagnose bilateral hydronephrosis and a keyhole sign

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because of dilated posterior electron, because the there,

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this entities happens in the second trimester of pregnancy.

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The renal damage is extensive because of the constant VAs

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reflux.

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There is renal dysplasia increased in the cortical immunogenicity and cyst

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formation. The the pathophysiology is very separate,

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very different than what we see in multicystic dysplastic kidney.

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Now on V C U G you can see thick,

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thick trad bladder diverticular formation, dilated posterior,

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which is the key feature on V C U G.

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You can see reflux unilaterally or bilaterally.

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Whenever you see unilateral reflux. The reason of the other urate are not being,

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uh, not showing reflux, is it? It is already atretic.

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You can also see peral diabetic lung,

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the complications from the posterioral valves. If there is severe,

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very severe obstruction that leads to ure or renal failure in a

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newborn period. And because the system is obstructed,

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they can have multiple infections.

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This is another case. You can see there is dilated posterior ithra.

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This is posterioral valve causing dilation of the posterior urethra.

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There is severe reflux bilaterally.

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And then you can also see a per urethra diverticula. This is in the or.

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They tried to stent it and it was not possible.

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This patient had to get peritoneal dialysis catheter on day

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three of his life. So severe obstruction can lead to renal failure,

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which needs peritoneal dialysis catheter. We cannot miss these critical cases.

Report

Faculty

Dhanashree Rajderkar, MD

Associate Professor, Division Chief Pediatric Radiology

University of Florida, Gainesville

Tags

X-Ray (Plain Films)

Urethra

Ultrasound

Pediatrics

Neonatal

Lungs

Kidneys

Genitourinary (GU)

Congenital

Chest

Body