The Diagnostic Problem of the Hydatid Disease of the Kidney

Renal Hydatid Cysts and the Evaluation of Their Radiologic Images

“…The exact incidence of this compli cation is not known. It has been reported in only 2 of a series of 12 patients with RHD [19], Gilsanz et al [1] advocate that this event is much higher. In our series, hydatiduria associated with urinary obstruction was present in 2 patients.…”

Sonographic diagnosis of the ruptured hydatid cyst of the kidney

“…The most common presenting symptoms in the order of frequency are flank mass, renal pain, hematuria, and the drainage of hydatid cyst contents in the urine (hydatiduria) [1,2,4,5]. The main complications observed with renal hydatid cyst are infection and rupture.…”

“…The exact incidence of this complication is not known [1]. However, the cystic contents, such as daughter vesicles, the fragments of germinative membrane, and hydatid sands, may be the reason for voiding obstruction physically and consequent renal colics [1,[3][4][5][6][7].…”

“…If the cyst ruptures into the collecting system of the kidney, excretory urogram may show the daughter cysts in the pelvis as irregular mass with or without urinary obstruction [1,3,6] and a non-functioning kidney [4]. Ruptured renal hydatid cysts presenting with urinary obstruction were described in 2 cases of a series of 12 cases [4].…”

“…It may cause pain and hydatiduria with or without urinary tract obstruction [1]. Although the conventional radiological methods are insufficient, in the past preoperative diagnosis of the cyst rupture into the pelvicalyceal system was only tentative [4]. To date, there is no report in which sonography has been used to show spontaneous cyst rupture into the pelvis renalis.We present the US findings which led to the correct diagnosis in a case of rupture of a renal hydatid cyst into the pelvicalyceal system.…”