Renalcanaliculi ,obstructs most of the ranal calyces and also obstruction of the left urether proximal to the bladder entry?
Renal stone obstructing the L. distal ureter proximal to the bladder entry resulting in L. hydronephrosis and dilated calyces.
Staghorn calculus aka Coral Calculus I think this kidney is in a slightly lower position than usual, but the ureter seems to be of normal length and that possibly has led to a kinking of the ureter and stasis predisposing this patient to infection from 'urease producing organisms' and stones. Like the docs above have pointed out - i do see a segment of obstruction and it could be from strictures due to repeated ascending infections, which could have contributed to the stone formation. I am sure there is more to this case than meets the eye...it's not just another staghorn calculus. It's a special calculus, and the source from where this image has been picked up, will surely have a story to say. So please, Egyptian Doctor, when u put out the verdict, also put in an excerpt or summary about this case. Otherwise the whole exercise would seem like a middle school GK competition. :w (-:
Nonvisualization of right kidney(cause may be right nephrectomy or unilateral agenesis or non functional kidney) On the left side we see hydroureteronephrosis secondary to segmental obstruction of distal ureter. This obstruction may be secondary to neoplasm or non opaque stone or coagloma