A rare case of solitary hydatid cyst of kidney with renal pelvis involvement

Hydatid involvement of the kidney accounts for only 2–4% of all cases of hydatid disease it is very rare and again primary involvement of the kidney without involvement of liver parenchyma or lung parenchyma that makes it extremely rare. The purpose of this article is to review the imaging features of hydatid disease of the kidney and thus show the role of radiography, excretory urography, sonography, CT, and MRI in the diagnosis of Hydatidosis. Hydatiduria accompanies only 10 to 20 % of all cases of renal Hydatidosis and usually microscopic ,here we are reporting a 65 years old female with abdominal lump in right hypochondriac region with pain on USG finding suggestive of hydatid cyst of liver with indentation and possible involving right kidney but MDCT suggest it is a primary right renal hydatid large exophytic cyst having multiple daughter cysts involving upper pole of kidney with breech in the cortex and it extends to involve right renal pelvis which indenting to inferior surface of liver.