Sarcomatoid carcinoma is a high‑grade rare malignant tumor with both epithelial and mesenchymal components. Sarcomatoid carcinoma in the upper urinary tract is very rare. We reported here a case of sarcomatoid carcinoma of renal pelvis with osteosarcomatous differentiation, with involvement of the ureter and renal parenchyma in a 68-year-old female. Histologically, predominant pleomorphic spind...

Primary squamous cell carcinoma (SCC) of the renal pelvis is exceedingly rare and is associated with advanced stage at diagnosis and a poor prognosis. Diagnosis is often difficult due to vague presenting symptoms and nonspecific radiologic findings. The mainstay of treatment is nephrectomy, with cisplatin based chemotherapy and palliative radiation reserved for metastatic disease. We report a S...

Metastases of transitional cell carcinoma (TCC) of the renal pelvis to the eye is a very rare event, as only one previous case has been described in the literature. We present a patient with choroidal metastasis secondary to TCC of the renal pelvis, with a review of the relevant literature. A 61-year-old male presented with sudden-onset loss of vision of the left eye. Upon evaluation and assess...

The N-methyl-D-aspartate (NMDA) subtype of the ionotropic glutamate receptor is found in the periphery. The present study tested whether NMDA receptors (NMDARs) are present in the ends of afferent renal nerves in the renal pelvis, an area concerned mainly with transmitting sensation and the to reflex regulation of body fluid. The main NMDAR subunit, NMDAzeta1, was found to be more abundant in t...

PURPOSE To investigate the variability of the normal-sized fetal renal pelvis (≤5 mm) over time and to analyze repeatability of measurements. MATERIALS AND METHODS 98 fetal renal pelvises and 49 fetal urinary bladders were analyzed at a gestational age of 17-20 weeks at St. Olavs Hospital, Trondheim, Norway. The anterior-posterior diameter (APD) of the fetal renal pelvis and two diameters of ...

OBJECTIVE To study the types of injuries of renal pelvis and ureter following open surgical procedures for urolithiasis and predisposing factors leading to such injuries and discuss various options for the management of iatrogenic injuries of the renal pelvis and ureter. PATIENTS AND METHOD Case files and available radiographs of the patients who were managed for ureteral and renal pelvic inj...

Since the renal epidermoid cyst is too rare, the mechanisms of squamous morphogenesis have not well characterized. A 73-year-old female was referred with an incidentally detected renal pelvis mass. Abdominopelvic computed tomography scan revealed a noncalcified soft tissue mass in the renal pelvis. Total nephroureterectomy was performed under the impression of a renal pelvis malignancy. The pat...

The present study reports the clinical data of two patients with renal pelvis carcinoma and one patient with renal carcinoma who developed port-site metastasis following retroperitoneal laparoscopic surgery. The current study aimed to identify the cause and prognosis of the occurrence of port-site metastasis subsequent to laparoscopic radical resection of renal pelvis carcinoma and nephron-spar...

OBJECTIVES To evaluate effects of Cajal-like cells on human renal pelvis and proximal ureter on peristalsis. MATERIALS AND METHODS 63 patients submitted to nephrectomy due to atrophic non-functional kidney associated with hydroureteronephrosis were included as study group and 30 cases with nephrectomy due to other reasons were included as control group. Samples from renal pelvis and proximal ...

Primary squamous cell carcinoma (SCC) of the renal pelvis is rare because SCC represents only 0.5% to 0.8% of malignant renal tumors. Chronic irritation, inflammation, and infection induce squamous metaplasia of the renal collecting system, which may progress to dysplasia and carcinoma in most of affected individuals. Nephrolithiasis, especially formation of staghorn calculi, is the most common...