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What is a cortical cyst of the kidney?
The simple renal cyst is a benign non-neoplastic mass of unknown etiology arising in renal parenchyma (cortical cyst) or within the sinus region (parapelvic cyst). The uncomplicated cyst cavity is typically unilocular, usually filled with clear serous fluid and lined with a cuboidal epithelium with no communication to the renal collecting system. It's believed that these cysts arise from tubular or lymphatic obstruction. The incidence of renal cysts increases with age occurring rarely in neonates and the pediatric group, to over 50% in those over age 50.The simple renal cortical cyst or parapelvic cyst is discovered incidentally so it's important to differentiate it from a true renal neoplasm. Renal cysts account for 60-65% of all renal masses. Large cortical cysts can show up as a palpable flank mass and parapelvic cysts can be detected producing extrinsic compression or mass effect on the collecting system on an intravenous pyelography (IVP) exam. Renal cysts are rarely associated with conditions like tuberous sclerosis, von Hippel-Lindau disease, neurofibromatosis, or Caroli's disease. In most of these cases, the systemic condition already exists prior to the discovery of the renal cysts. Atypical renal cell carcinomas can develop as a complex cystic mass, although its appearance on US, computed tomography (CT) and magnetic resonance imaging (MRI) is easily differentiated from a simple cyst. The parapelvic cyst appears on US as a medially located cystic mass with surrounding echogenic walls since it's located within the fatty renal sinus. Keep in mind that multiple cysts can be confused with generalized or even localized hydronephrosis. Look for a lack of central communication between the cysts as a distinguishing feature. With hydronephrosis, the dilated calyces are seen to coalesce centrally like the fingers of a glove as they connect to the renal pelvis and proximal ureter. If the differentiation isn't clear on US, an IVP or CT exam can help with the diagnosis. If the radiologist is confident that the central renal cystic mass or masses represent parapelvic cysts and the finding is completely incidental, then no further imaging followup or investigation is necessary. MM (Reference: Radiology: Diagnosis, Imaging, Intervention1999;121:1-4.)
What is prominent para-pelvic cysts and-or extrarenal pelvises involving both kidneys?
Para-Pelvic cysts - Para-Pelvic cysts - Parapelvic cysts of the kidneys are simple renal cysts, which are adjacent to the renal pelvis or the renal sinus. Simple renal cysts occur unilateral or bilateral, single or multiple.Extrarenal Pelvises - It refers to the presence of the renal pelvis outside the confines of the renal hilum. The renal pelvis is formed by all the major calyces. An extarenal pelvis usually appears dilated giving a false indication of an obstructive pathology. Subsequent investigation with CT, usually clarifies the false interpretation on ultrasound. It is found in approximately 10% of the population.
Who was king Henry and what did he do?
he was a mean person who lived with mean people in a mean castle on a mean hill in a mean country in a mean continent in a mean world in a mean solar system in a mean galaxy in a mean universe in a mean dimension
What does (.)(.) mean?
you mean what you mean
What does mean mean in statistics?
Mean is the average.
How do you spell mean?
Mean
What does descriptor mean?
It mean what you don't what does it mean.
Is an arithmetic mean a weighted mean or a weighted mean an arithmetic mean?
The arithmetic mean is a weighted mean where each observation is given the same weight.
What does the 12 Chinese zodiac animals meant?
rat mean intense. ox mean calm , born tiger mean powerful rabbit mean good friend dragon mean strong snake mean prudent horse mean popular goat mean shy monkey mean inventor rooster mean organized dog mean intelligent pig mean honest that are what the 12 chinese zodiac animals mean
Do you say 'what does it mean' or 'what is it mean'?
The correct usage is "what DOES it mean"
What do the hardens mean mean?
The haudensaunee mean irguios
What does the aumred mean?
Do you mean ''What does the AUM Mantra mean?''
