INTRODUCTION Megacystisisarareconditionininfants,whichisusuallyassociatedwithrefluxing megaureters,prune-bellysyndrome(PBS),infravesicalobstructionorpresents as themegacystismicrocolon intestinal hypoperistalsis syndrome (MMIHS). Rarereven,isisolatedcongenitalmegacystis(ICM).Theetiologyofthisentityisunknown. Myentericplexuspathology(1)andamildfor...