Developmental Syndromes and Malformations of the Urinary Tract
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Pediatric Nephrology DOI 10.1007/978-3-642-27843-3_5-1 # Springer-Verlag Berlin Heidelberg 2014 Developmental Syndromes and Malformations of the Urinary Tract Chanin Limwongse* Department of Medicine, Division of Medical Genetics, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkoknoi, Bangkok, Thailand Introduction Birth defects involving the kidney and urinary system are often encountered and frequently occur in association with other structural abnormalities. A congenital urinary tract anomaly may provide the first clue to the recognition of multiorgan developmental abnormalities. Nevertheless many renal anomalies remain asymptomatic and undiagnosed. Therefore it is critical, not only for pediatric nephrologists but also for pediatricians in general, to be familiar with the common anomalies involving the kidney and urinary system and the more complex disorders with which they may be associated. The kidney is a pivotal organ in dysmorphology. Although the number of single malformations involving the kidney is limited, combinations of these malformations in conjunction with anomalies involving other organ systems are found in more than 500 syndromes. In addition, many well- known sequences and associations involve the kidney and urinary tract. This chapter discusses common malformations, sequences, and associations involving the kidney and urinary tract and provides a summary of conditions that have these anomalies as one of their features. In addition, Tables 1, 2, and 3 summarize more detailed information about a large number of disorders, including their phenotypic features, reported urinary tract anomalies, pattern of inheritance, causative genes, and related references. These tables can be used both to provide readily available information about potential urinary tract anomalies for patients with a diagnosed genetic syndrome and to suggest a differential diagnosis when anomalies are identified. Readers interested in additional details about a specific syndrome are referred to standard reference textbooks and databases about syndromes and malformations for further reading (e.g., [5–7]). Online Mendelian Inheritance in Man (OMIM; https://www.omim.org) is currently considered the most updated online information for cataloging genetic syndromes and can lead readers to many informative sites through its various links. To understand the pathophysiologic basis of structural abnormalities, it is important to be familiar with the meaning of certain terms as they are used in describing malformations and syndromes: Malformation refers to a single structural anomaly that arises from an error in organogenesis. Such an error may be due to the failure of cells or tissues to form, to die (programmed cell death), or to induce others. Examples include renal agenesis, horseshoe kidney, and bladder exstrophy. Deformation refers to a single structural anomaly that arises from mechanical forces, such as intrauterine constraint. Examples include many cases of metatarsus adductus, torticollis, and congenital scoliosis. The underlying tissue may be normal or abnormal, and sometimes a malformation (e.g., renal agenesis) can predispose patients to a deformation (e.g., Potter’s sequence from oligohydramnios). *Email: [email protected] *Email: [email protected] Page 1 of 46 # DOI 10.1007/978-3-642-27843-3_5-1 Pediatric Nephrology Springer-Verlag Berlin Heidelberg 2014 Table 1 Syndromes and disorders that have urinary tract anomalies as a frequent feature Urinary tract abnormalities ureter = sclerosis = horseshoe stenosis nephromegaly dysplasia = = = = Other associated Tumor Reflux Nephritis Cystic Duplication Hypoplasia Hydronephrosis Diverticula Atresia Syndromes Renal agenesis Ectopia Other associated anomalies anomalies Gene(s) References Abruzzo-Erickson H Coloboma, cleft palate, hypospadias, XR Unk [48] deafness, short stature Acrocephalopolydactylous + + + Acrodactyly, hand hexadactyly, AR Unk [49] dysplasia (Elejalde syndrome) overgrowth, visceromegaly, globular body, redundant neck skin Acrorenal (Dieker) 1 E + + + Ua Ectrodactyly, oligodactyly, hypoplastic Sporadic Unk [50] carpal/tarsal bones Acrorenal (Johnson-Munson) 1, U, Ua Aphalangy, hemivertebrae, genital/ AR Unk [50] 2 intestinal/anal dysgenesis Acrorenal (Siegler) E + U + Short stature, hypoplastic radii/ulnae/ Uncertain Unk [50] humeri, oligodactyly Acrorenal-mandibular 1 + Ectrodactyly, hypoplastic mandible AR Unk [51] Acrorenal-ocular 1 E + B Hypoplastic thumb, optic coloboma, cleft AD SALL4 [52] lip/palate Adrenoleukodystrophy,neonatal See Pseudo-Zellweger Aglossia-adactylia 1 Micrognathia, cranial nerve palsy Sporadic Unk [53] Agnathia-holoprosencephaly H + Arrhinencephaly, situs inversus, midline Sporadic Unk [54] defects Alagille 1 + + + Cholestasis, peripheral pulmonic stenosis, AD JAG1 [55] characteristic face Page 2 of 46 Alport + Nephritis, proteinuria, deafness AD, AR, XL COL4 [56] Alsing + Nephritis, nephronophthisis, optic AR Unk [57] coloboma, hip dislocation # DOI 10.1007/978-3-642-27843-3_5-1 Pediatric Nephrology Alstrom + Diabetes mellitus, retinopathy, short AR ALMS1 [58] Springer-Verlag Berlin Heidelberg 2014 stature, deafness Amelogenesis imperfecta type IG + Enamel hypoplasia, nephrolithiasis, AR Unk [59] enuresis Amyloidosis type 5 + Nephropathy, proteinuria, cranial nerve AD GELSOLIN [60] palsy, cutis laxa Angiotensin-converting enzyme + IUGR, oligohydramnios, patent ductus Sporadic none [61] (ACE) inhibitor, maternal use arteriosus, limb anomalies, renal artery stenosis, progressive renal failure Aniridia-Wilms tumor (WAGR) + Aniridia, ambiguous genitalia, hypospadia, AD WT1 [62] short stature Axial mesodermal dysplasia 1 Bladder exstrophy, vertebral anomalies, Uncertain Unk [63] Goldenhar-like Baldellou 1 Hypoparathyroidism, ocular coloboma, Uncertain Unk [64] MR, seizures Baller-Gerold + E + + Craniosynostosis, radial aplasia, AR RECQL4 [65] malformed ear, anal atresia Barakat + Mesangial sclerosis, MR, optic atrophy, AD GATA3 [66] nystagmus Bardet-Biedl + + + + + + Obesity, polysyndactyly, MR, retinopathy, AR BBS1-12 [67, 68] hypogonadism Beckwith-Wiedemann E + + + + Overgrowth, macroglossia, omphalocele, Sporadic, AD CDKN1C, [69–72] embryonal tumors NSD1, H19 Berardinelli + + Insulin resistance, lipodystrophy, AR BSCL2 [73] acanthosis nigricans, MR Brachymesomelia-renal + Micrognathia, corneal opacity, craniofacial Uncertain Unk [74] dysmorphism Branchio-oculo-facial 1 Philtrum hypertrophy, cleft lip/palate, AD TFAP2A [75] branchial remnant Branchio-oto-renal 1, E + + + + + Branchial remnant, preauricular pit/tag, AD EYA1, SIX5 [76] 2 microtia, deafness Braun-Bayer + U + Deafness, bifid uvula, digital anomalies Uncertain Unk [77] Page 3 of 46 Cat eye See Table 3 Chromosomal (continued) Table 1 (continued) # DOI 10.1007/978-3-642-27843-3_5-1 Pediatric Nephrology Springer-Verlag Berlin Heidelberg 2014 Urinary tract abnormalities ureter = sclerosis = horseshoe stenosis nephromegaly dysplasia = = = = Other associated Tumor Reflux Nephritis Cystic Duplication Hypoplasia Hydronephrosis Diverticula Atresia Syndromes Renal agenesis Ectopia Other associated anomalies anomalies Gene(s) References Caudal duplication 1, E + + + Duplication of colon, sacrum, genitalia, Sporadic AXIN1 [78] 2 vertebral defects Caudal regression 1, E, + + Ua + Atresia of colon, anus, genitalia, vertebral AD, AR VANGL1 [79, 80] 2 H defects, TE fistula Cerebro-hepato-renal (Passarge) + See Zellweger syndrome AR PEX [81] Cerebro-oculo-hepato-renal + Cerebellar hypoplasia, hepatic fibrosis, AR Unk [82] Leber amaurosis Cerebro-osteo-nephro dysplasia + + Rhizomelic limb shortening, cerebral AR Unk [83] atrophy, MR, seizures CHARGE + E + + + + U + See text for details Sporadic, AD CHD7 [33–37] Chondroectodermal dysplasia 1 + + + Acromelic dwarfism, polydactyly, nail AR EVC, EVC2 [84, 85] (Ellis van Creveld) dystrophy, tooth hypoplasia narrow thorax, CHD Cocaine, maternal use 1, + + Ua + Vascular disruption anomalies affecting Sporadic none [86] 2 multiple organs Cornelia de Lange 1 + + + + SS, microcephaly, limb defect, hirsutism, Sporadic NIPBL, [87] synophrys SMC1L1 Crossed renal ectopia-pelvic E + U Clubbing of fingers, gynecomastia Uncertain Unk [88] lipomatosis Czeizel + U Ectrodactyly, spina bifida, megacystis AD Unk [89] Diabetic mother, infant of 1, E, + + + + Ua + Neural tube defect, cardiac/limb anomalies, Sporadic none [90, 91] 2 H sacral agenesis DiGeorge/velocardiofacial 1, E + + + + + See Table 3 Chromosomal Page 4 of 46 3 Denys-Drash E + + + Pseudohermaphroditism, Wilms tumor, Sporadic WT1 [92] proteinuria # DOI 10.1007/978-3-642-27843-3_5-1 Pediatric Nephrology Down See Table 3 Chromosomal Springer-Verlag Berlin Heidelberg 2014 Ectrodactyly-ectodermal 1 + + + + Ectrodactyly, hypohidrosis, sparse hair, AD Unk [93] dysplasia-clefting (EEC) cleft lip/palate Elejalde See acrocephalopolydactylous dysplasia Epstein + Thrombocytopenia, nerve deafness, AD MYH9 [94] cataract Facio-cardio-renal H + U Cardiomyopathy, conduction defect, MR, AR Unk [95] typical face Fanconi anemia 1 E, + + + + Pancytopenia, limb defects, leukemia, AR FANCA-N [96, 97] H lymphoma Fetal alcohol 1 E, + + + + IUGR, DD, microcephaly, short palpebral Sporadic none [98] H fissure Fibromatosis, infantile + + Multiple myofibromatosis, myositis AR Unk [99] ossificans Fraser cryptophthalmos 1, + U Fused eyelids, ear/genital anomalies, AR FRAS1 [100] 2 syndactyly Frasier + + Male pseudohermaphrodite, amenorrhea, AD WT1 [101] ovarian cysts Goeminne + + Congenital torticollis, keloids, XR Unk [102] cryptorchidism