Sentence:  We present an extremely rare case of delayed and combined ventriculoperitoneal <WSD>shunt</WSD> blockage, viscus perforation and migration into the urethra manifested by a repeated urinary tract infection. This was discovered six months after the <WSD>shunt</WSD> was inserted. 
Meaning of the word marked with <WSD> tags:  A passage between body channels constructed surgically as a bypass; a tube inserted into the body to create such a passage.