megacystis-microcolon-intestinal hypoperistalsis syndrome Berdon syndrome DOID:0060610 GARD:0003442 ICD10:Q43.8 MESH:C536138 MMIH syndrome MMIHS MONDO:0007960 Megacystis microcolon intestinal hypoperistalsis syndrome (MMIHS) is a rare congenital disease characterized by massive abdominal distension caused by a largely dilated non-obstructed urinary bladder (megacystis), microcolon and decreased or absent intestinal peristalsis. NCIT:C98982 OMIM:249210 Orphanet:2241 SCTID:253781004 UMLS:C1608393 megacystis microcolon intestinal hypoperistalsis syndrome megacystis, microcolon, hypoperistalsis syndrome megacystis, microcolon, intestinal hypoperistalsis syndrome megacystis-microcolon-intestinal hypoperistalsis syndrome megacystis-microcolon-intestinal hypoperistalsis syndrome, MMIH megacystis-microcolon-intestinal hypoperistalsis-hydronephrosis syndrome visceral myopathy syndromic urogenital tract malformation syndromic renal or urinary tract malformation intestinal motility disease