What does kidney lobulation mean?
Abstract. Persistent fetal lobulation of the kidneys is an uncommon condition that causes the surface of the kidney to appear as several lobules instead of smooth, flat and continuous.
What causes fetal lobulation of the kidney?
Persistent fetal lobulation is a normal variant seen occasionally in adult kidneys. It occurs when there is incomplete fusion of the developing renal lobules. Embryologically, the kidneys originate as distinct lobules that fuse as they develop and grow.
What does Lobulated appearance mean?
A lobulation is an appearance resembling lobules. For instance, the thyroid gland may become large and lobulated in Hashimoto’s thyroiditis. Fetal lobulation, also known as fetal lobation, of the kidney is evident on scanning. Fetal lobation is a normal stage in the development of the kidney.
What does lobulated mean medically?
Medical Definition of lobulated : made up of, provided with, or divided into lobules a lobulated tumor.
What does lobulated mean on ultrasound?
Introduction. Lobulated ovaries are defined as ovaries divided into lobules by 1 or more cracks. To our knowledge, there were little about lobulated ovaries in the literature. In this article, we report a case of pathologically proven lobulated ovaries and demonstrate the ultrasound manifestations.
What does it mean when a fetus has enlarged kidneys?
Fetal hydronephrosis is swelling of a baby’s kidney caused by a buildup of urine. This can happen while the baby is still in the mother’s uterus. Doctors often find the problem when a woman has a fetal ultrasound during pregnancy. Urine normally travels from the kidney down a narrow tube to the bladder.
Is fetal lobulation bad?
Persistent fetal lobulation of kidney is a rare anatomic variant and can pose pitfalls in diagnostic imaging. It can mimic a renal neoplasm and sometimes even diagnosed on subsequent surgery and histology as a wrong radiological diagnosis.
What species has a lobulated kidney?
Although, kidneys naturally multipyramidal in their medullary morphology are rare in terrestrial mammals, kidneys with lobulated medullas do occur in: elephants, bears, rhinoceroses, bison, cattle, pigs, and the okapi.
What is lobulated margin?
Both are well-circumscribed, oval-to-round nodules with regular margins. Blurred or microlobulated margins indicate infiltrating tumors, while lobulated margins are characteristic of expansile tumors. Overtly invasive encapsulated tumors are characterized by oval-to-round nodules with irregular or lobulated margins.
What are lobulated margins?
How common is enlarged kidney fetus?
1) A prenatal ultrasound (ultrasound during pregnancy) may reveal a fetus with dilated kidneys. This occurs in 1 per 100 pregnancies.
What is good kidney size?
The size of the kidneys is measured mainly sonographically, although both CT and MRI scans also can be used to estimate renal size. The mean average pole to pole length of an adult human kidney is 10-13 cm. In general, the left kidney is slightly longer than the right. As expected, solitary kidneys are larger.