Megapolycalycosis

Megapolycalycosis is a rare congenital anomaly of the kidney which is characterized by dilatation and increase in number of the renal calyces without any distal obstruction.

It is thought to develop due to an abnormal development of the renal medulla. 

Due to the calyceal dilatation there is stagnation of urine leading to urinary tract infection and formation of calculi.

Symptoms related to calculus or urinary tract infection such as  such as pain, haematuria, fever and dysuria are seen. 

Classically enalrged kidneys with uniform calyceal dilatation. Rest of the excretory systems generally is normal. Renal functions are generally normal.

IVP

Dilatation of calyces without dilatation of pelvis and ureter.

Best functional and structural analysis.

USG and CT

Same as IVP findings though USG gives only morphological assesment.

Associations 
  • obstructive uropathy
  • vesico-uretric reflux
  • Schinzel- Giedion Syndrome

Megapolycalycosis per say does not require any treatment, unless complicated with calculi or infection requiring appropriate managment. 

Regular follow up should be done due to high risk of infecion and stone formation

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Article information

rID: 25370
System: Urogenital
Synonyms or Alternate Spellings:

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