Liposarcomas are neoplasms of mesodermic origin, are derived from adipose tissue and represent <1% of all malignant tumours. Primary liposarcomas of the kidney are very rare. Here, we present the cases of two patients diagnosed with retroperitoneal perirenal myxoid liposarcoma. The patients were diagnosed via imaging, which in both cases revealed a huge right retroperitoneal tumour mass compres...

Kidney and esophageal tumors induced by alkylating /V-nitroso com pounds in rats contain a high incidence (75-100%) of G -> A transition mutations in the p53 gene. These are almost selectively (89%) located in the tirsi base of codon 204 and the second base of 213, leading to amino acid substitutions Glu -»Lys and Arg -»Gin, respectively. In contrast to human neoplasms, a considerable fractio...

Congenital renal fusion anomalies, characterized by either partial or complete fusion of the two kidneys, are represented by horseshoe kidney, crossed renal ectopia with fusion and fused pelvic cake kidney. Though these anomalies may remain asymptomatic, in certain cases they may be associated with pathological conditions like nephrolithiasis, hydronephrosis, recurrent urinary tract infections,...

Intraductal papillary mucinous neoplasm (IPMN) accounts for 20-50% of all cystic neoplasms of the pancreas. Rarely, IPMN, whether benign or malignant, can fistulize into adjacent organs like duodenum, stomach or common bile duct. IPMN can be associated with other diseases like Peutz-Jeghers syndrome and familial adenomatous polyposis. Association with adult polycystic kidney disease (ADPKD) is ...

Renal metastasis from primary colon cancer is very rare, comprising less than 3% of secondary renal neoplasms. There are just 11 cases reported in the medical literature of colonic adenocarcinoma metastatic to the kidney. Of these cases, none occurred via direct invasion. We report a unique case of a 51-year-old female with extraluminal colonic adenocarcinoma which directly invaded into the kid...

Introduction. Chronic kidney disease (CKD) is a worldwide problem with an increasing general and widespread incidence affecting people of all age groups races. All stages CKD are at risk some somatic diseases, reduced quality life mortality. Material methods. The study included 30 patients (16 men 14 women) who underwent surgical treatment intraoperative biopsy to identify possible morphologica...

In the period 1968-76, necropsies were carried out on 30 patients who had been treated by long-term intermittent maintenance haemodialysis. Fourteen of these patients developed bilateral cystic disease of the kidney. Clinical, pathological, and radiological investigation of these patients when they first presented did not reveal any evidence of renal cystic change. The main complications of thi...

Synovial sarcoma (SS) is a soft tissue, generally deep seated neoplasms that occurs generally in the proximity of large joints. We report of a case of a 33-year-old man who was diagnosed with primary SS of the kidney which is an extremely rare tumor that accounts for less than 2% of malignant renal tumors. Contemporary management of renal synovial sarcoma includes surgical resection and ifosfam...

Primary carcinoid tumor arising in a mature teratoma of the horseshoe kidney is exceptionally rare and only 4 such cases have been reported in the world literature to date. The simultaneous occurrence of different subtypes of renal cell carcinoma (RCC) or RCC coexistence with non-RCC neoplasms from the same kidney is unusual and infrequently reported. Herein we report a case of primary carcinoi...

The coexistence of multiple and synchronous primary neoplasms in the same organ (including kidney) has only rarely been described in the literature. We herein present a case of collecting duct carcinoma (CDC) combined with papillary renal carcinoma (RCC) having a 57-month disease-free survival CDC is a rather rare and aggressive neoplasm of the kidney. Sharing probably the same embryological or...