Hello,
Small simple kidney cysts are commonly seen after the age of 50, they rarely result in symptoms and are accidentally discovered.
Large cysts on the other hand may cause complications and present with
pain and deterioration of the kidney function thus may require surgical removal.
Having a history of urinary bladder cancer that was recurrent although early stage, the possibility that a mild obstruction in the urine flow out of the kidney was present. Overtime with back pressure on the kidney, renal cysts can be formed.
This could happen if fibrosis has occurred after resection of the mass in the bladder near the ureteric insertion into the bladder.
Another more serious problem to be excluded is the presence of low grade carcinomas in the urinary tract (since bladder cancer is a part of multifocal disease all through the urinary system from the renal pelvis down to the urethra). This may also cause some sort of renal back pressure and cysts formation.
Another possibility is renal stones that may also result in kidney back pressure.
Radiological examination and
endoscopy is essential to exclude any lesion throughout the urinary tract. In addition removal of these cysts for diagnosis as well as for therapy may be needed.
This list of possibilities can be narrowed and more specific investigations and approach can be done only after thorough clinical history and clinical examination.
So I advise you to follow up with your Doctor and to discuss with him all your concerns.
Please keep us updated.
Best regards.
This answer does not substitute for direct medical consultation.
Dr. Safaa Mahmoud.
MB BCh, MSc Internal Medicine. MD Medical Oncology.
PhD Experimental Medicine and Biochemical Science.
