UPJO is unilateral in 90% of cases and may result from intrinsic narrowing at the junction between ureter and renal pelvis
or extrinsic compression by an accessory lower pole artery of the kidney .
Primary malignant tumors of renal pelvis
are relatively rare, constituting 8-14% of all renal malignancies (4).
Morphologic evidence that analgesic-induced kidney pathology contributes to the progression of tumors of the renal pelvis
Squamous cell carcinoma of the renal pelvis
is rare and accounts for less than 1% of urological malignancies .
In our study, hydronephrosis resolved in all patients with SFU grade I/II or renal pelvis
APD < 10mm.
During the follow-up period, his hematuria improved and abdominal CT at 3 months showed that the space-occupying lesion in the right renal pelvis
had disappeared (Figure 4).
Postnatal investigation and outcome of isolated fetal renal pelvis
Sarcomatoid variant of urothelial carcinoma (SVUC) of the renal pelvis
is a rare tumour with aggressive clinical behaviour .
In our case, identification and mobilization of the renal pelvis
and UPJ were difficult because of intrarenal pelvis localization.
[sup] also reported Hem-o-lok migrated into the renal pelvis
with renal calculus formation.
Koff et al.8,18 reported that, among children less than 2 years of age with HN, the volume of the renal pelvis
is the primary determinant of the shape of the washout curve (T1/2), while expansion of the pelvic volume during diuresis changes its slope and may lead to a misdiagnosis of obstruction.
Lack of adequate flow of contrast from the renal pelvis
to the ureter on imaging studies is diagnostic of an Obstruction of the Ureteropelvic junction (UPJ).