We report a case of successful endoscopic cystgastrostomy guided by en
doscopic ultrasound after an unsuccessful attempt at ''blind'' drainag
e, Endoscopic drainage of pseudocysts without endoscopic ultrasonograp
hy is an appropriate initial approach by experienced endoscopists in c
arefully selected patients, In cases in which an intraluminal impressi
on by the pseudocyst is not well visualized, or the conventional appro
ach has not established drainage, endoscopic ultrasound provides excel
lent localization for the therapeutic maneuver.