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Mathur P, Sharma S, Mittal P, Yadav RK, Barolia D. Heteropagus twins: six cases with systematic review and embryological insights. Pediatr Surg Int 2022; 38:963-983. [PMID: 35567628 DOI: 10.1007/s00383-022-05135-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/28/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Heteropagus twinning (HT) is a rare anomaly. Six new cases along with a systematic review are described. METHODS Six cases of HT managed at two tertiary care teaching hospitals over the last 26 years are described. A PubMed search with words: Heteropagus AND/ OR parasitic twins from 2001 to 2021 hit 183 articles. 36 were added from non-PubMed sources. Finally, 120 cases including 114 from 69 articles and 6 new cases were analysed. RESULTS Of the new cases, 2/6 had an antenatal diagnosis. Five were males. 4 autosites had omphaloceles. Split notochord and 2 parasites attached to a single autosite were encountered. 5/6 autosites survived. On systematic review, the most frequent variant seen was rachipagus (n = 50) followed by omphalopagus (n = 46). Limbs were reported in 75 cases. Congenital heart disease was seen in 17/120(14.2%) autosites. Omphalocele and meningomyelocele were the most common extracardiac anomalies in autosites. Weight along with the anatomy and position of heteropagus twins was a better determinant of the mode of delivery than weight alone. Mortality was reported in 12 cases. CONCLUSION Autosites in HT generally carry a good prognosis, however, final outcome depends mainly on associated major cardiac anomalies. Meticulous antenatal assessment and preoperative planning are of paramount importance. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Praveen Mathur
- Department of Pediatric Surgery, SMS Medical College, Jaipur, Rajasthan, 302004, India
| | - Shilpa Sharma
- Department of Pediatric Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Priyanka Mittal
- Department of Pediatric Surgery, SMS Medical College, Jaipur, Rajasthan, 302004, India.
| | - Raj Kumar Yadav
- Department of Radiodiagnosis, SMS Medical College, Jaipur, India
| | - Dinesh Barolia
- Department of Pediatric Surgery, SMS Medical College, Jaipur, Rajasthan, 302004, India
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Zhi X, Hu B, Zhao X, Chen J, Gu C, Pu L, Fang Y, Cai C. A cohort of five cases with asymmetric conjoined twining and literature review. Pediatr Surg Int 2022; 38:169-181. [PMID: 34467432 DOI: 10.1007/s00383-021-05006-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/26/2021] [Indexed: 02/01/2023]
Abstract
PURPOSE Asymmetric conjoined twining (ACT) is a form of conjoined twining which is a rare malformation of monochorionic monoamniotic twin pregnancy. Most publications were single case reports. We reported a cohort of five cases with ACT from a single tertiary medical center and reviewed the case reports of ACT over the last decade to enrich the clinical research of this disease and summarized the clinical features of the disease. METHODS We reviewed five cases of ACT admitted in Tianjin Children's Hospital from 17 March, 2008, through 7 March 2017. The cohort was analysed from general information, imaging manifestations, separation surgery, histopathological findings, outcome and follow-up. We searched the English literatures on case reports of ACT over the past decade from the PubMed database and presented details about the clinical characteristics, treatment, and prognosis of all cases. RESULTS There were four males and one female in our cohort. Among the five cases, two parasites were located in epigastrium, two in rachis, and one in retroperitoneum (fetus in fetu, FIF). All of the parasites were separated successfully by operation in five cases and were confirmed to be ACT by histopathology reports. Four patients made an uneventful recovery except for one case of wound infection. All of them were doing well in follow-up. In the literature review, we found 41 cases of exoparasitic heteropagus twining (EHT) and 63 cases of FIF. CONCLUSIONS ACT is very rare and usually diagnosed by prenatal ultrasonography (US). Computed tomography (CT) and magnetic resonance imaging (MRI) examinations are essential imaging examinations before separation surgery to delineate the anatomical relationship between the autosite and the parasite. In general, the separation surgery of ACT is less complicated and the prognosis is better compared with the symmetric conjoined twining (SCT).
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Affiliation(s)
- Xiufang Zhi
- Graduate College of Tianjin Medical University, Tianjin, 300070, China.,Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, 300134, China
| | - Bo Hu
- Department of Neonatal Surgery, Tianjin Children's Hospital, Tianjin, 300134, China
| | - Xuwen Zhao
- Department of Neonatal Surgery, Tianjin Children's Hospital, Tianjin, 300134, China
| | - Jing Chen
- Department of Radiology, Tianjin Children's Hospital, Tianjin, 300134, China
| | - Chunyu Gu
- Graduate College of Tianjin Medical University, Tianjin, 300070, China.,Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, 300134, China
| | - Linjie Pu
- Graduate College of Tianjin Medical University, Tianjin, 300070, China.,Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, 300134, China
| | - Yulian Fang
- Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, 300134, China.,Tianjin Pediatric Research Institute, Tianjin, 300134, China.,Tianjin Key Laboratory of Birth Defects for Prevention and Treatment, Tianjin, 300134, China
| | - Chunquan Cai
- Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, 300134, China. .,Tianjin Pediatric Research Institute, Tianjin, 300134, China. .,Tianjin Key Laboratory of Birth Defects for Prevention and Treatment, Tianjin, 300134, China. .,Department of Neurosurgery, Tianjin Children's Hospital, No. 238 Longyan Road, Beichen District, Tianjin, 300134, China.
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Zewdie K, Negash S, Bizuneh Y, Woldemichael F, Temesgen F. Rachipagus parasitic twins: A case series and review of literature. INTERDISCIPLINARY NEUROSURGERY 2021. [DOI: 10.1016/j.inat.2020.101049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Fully developed accessory lower limb with tethered cord: Are these two anomalies related? Childs Nerv Syst 2021; 37:325-328. [PMID: 32328705 DOI: 10.1007/s00381-020-04616-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/07/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Spinal dysraphic anomalies may be hidden beneath grotesque cutaneous stigmata, like a fully developed accessory lower limb. CASE DESCRIPTION Authors describe a 4-year-old boy who had socially unacceptable malformation in form of an accessory lower limb, in addition to perfectly normal both lower limbs with underlying low-lying tethered cord. Radiological studies showed underlying tethered cord and dysraphic spinal column. CONCLUSION Successful surgical correction was undertaken along with detethering of cord. The present case asks for evaluation of all cutaneous stigmata over spinal regions in newborns for spinal dysraphic states.
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Saaiq M, Zimri FK, Zaman KU. Successful Treatment of Well-Developed Accessory Lower Limb Associated with Spinal Dysraphism. World J Plast Surg 2020; 9:73-81. [PMID: 32190596 PMCID: PMC7068195 DOI: 10.29252/wjps.9.1.73] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Accessory lower limb with spinal dysraphism are amongst the rarest known anomalies. We successfully managed a 5-months old female infant with surgical ablation of the accessory lower limb and repair of the associated large lipomyelomeningocele. A comprehensive review of the relevant literature was undertaken and presented herein. A classification system for accessory lower limb is also proposed.
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Affiliation(s)
- Muhammad Saaiq
- Department of Plastic Surgery, National Institute of Rehabilitation Medicine (NIRM), Islamabad, Pakistan
| | - Faridullah Khan Zimri
- Department of Orthopedic Surgery, National Institute of Rehabilitation Medicine (NIRM), Islamabad, Pakistan
| | - Khaleeq-Uz Zaman
- Department of Neurosurgery, National Institute of Rehabilitation Medicine (NIRM), Islamabad, Pakistan
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Khavanin N, Ruge JR, Vicari FA, Belin EJ, Kellogg RG, Steinberg JP. Parasitic rachipagus conjoined twin: case report. J Neurosurg Pediatr 2018; 22:313-316. [PMID: 29882735 DOI: 10.3171/2018.3.peds1822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A parasitic twin represents a rare developmental anomaly in which an asymmetrical, nonviable conjoined twin is attached to the host body at the time of birth. Rachipagus is among the rarest of conjoined twin subtypes and typically features a parasitic twin mass attached at the spine. Herein, the authors review the literature and describe the case of a 9-month-old girl presenting with a rachipagus parasitic twin consisting of a fully developed set of lower extremities originating from the midline upper back. After a complete workup to delineate parasite and autosite anatomy, the parasitic twin mass was successfully excised by a multidisciplinary team of surgeons, and the resulting defect was closed in a single stage.
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Affiliation(s)
- Nima Khavanin
- 1Department of Plastic and Reconstructive Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | | | | | - Eric J Belin
- 4Pediatric Orthopedic Surgery, Advocate Children's Hospital, Park Ridge, Illinois
| | | | - Jordan P Steinberg
- 1Department of Plastic and Reconstructive Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland; and
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Kelani AB, Moumouni H, Issa AW, Younsaa H, Fokou H, Sani R, Sanoussi S, Denholm LJ, Beever JE, Catala M. Notomelia and related neural tube defects in a baby born in Niger: case report and literature review. Childs Nerv Syst 2017; 33:529-534. [PMID: 28083641 DOI: 10.1007/s00381-017-3337-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 01/03/2017] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Notomelia associated with neural tube defects are rare diseases. CASE REPORT A baby was born in Niger with multiple congenital embryonic malformations on the posterior midline. The most rostral malformation was an accessory limb (polymelia) at the level of the lumbar vertebrae composed of two long bones, a foot and three toes. Accessory male genitalia were present at the base of this malformed accessory limb which had no apparent motor or sensory innervation. The second malformation was a sacral vestigial appendage with an adjacent dermal sinus opening onto the posterior midline and extending internally to the dura through a defect of the vertebral arches. From the published literature and this particular case, we conclude that notomelia is a rare clinical sequela of a neural tube defect (NTD) and is correctly classified as a dysraphic appendage. CONCLUSION The recent occurrence of three similar cases in the same ethnic group from Niger, three from consanguineous parents, suggests that genetic factors are likely to contribute significantly to the genesis of this syndrome, consistent with a recent report that mutation of the bovine NHLRC2 gene resulting in a V311A substitution at a highly conserved locus in the NHLRC2 protein is, when homozygous, causally associated with several forms of polymelia including notomelia, with heteropagus conjoined twinning and with other NTD-related embryonic malformations. Detailed genome-wide studies of children with dysraphic appendages are indicated.
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Affiliation(s)
- A B Kelani
- Département de Chirurgie, Faculté des Sciences de la Santé (FSS), Université Abdou Moumouni (UAM), Niamey, Niger
- Service de Neurochirurgie, Hôpital National, Niamey, Niger
| | - H Moumouni
- Département d'Embryologie, FSS, UAM, Niamey, Niger
| | - A W Issa
- Service de Neurochirurgie, Hôpital National, Niamey, Niger
| | - H Younsaa
- Service de Chirurgie Générale, Hôpital National, Niamey, Niger
| | - Hmu Fokou
- Service de Chirurgie Générale, Hôpital National, Niamey, Niger
| | - R Sani
- Service de Chirurgie Générale, Hôpital National, Niamey, Niger
| | - S Sanoussi
- Département de Chirurgie, Faculté des Sciences de la Santé (FSS), Université Abdou Moumouni (UAM), Niamey, Niger
- Service de Neurochirurgie, Hôpital National, Niamey, Niger
| | - L J Denholm
- NSW Department of Industry, Orange NSW, Australia
| | - J E Beever
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - M Catala
- Sorbonne Université, UPMC Université Paris 06, UMR7622, F-75005, Paris, France.
- CNRS, Institut de Biologie Paris Seine (IBPS) - Developmental Biology Laboratory, UMR7622, F-75005, Paris, France.
- INSERM, ERL1156, F-75005, Paris, France.
- Fédération de Neurologie, Groupe hospitalier Pitié-Salpêtrière-APHP, F-75013, 47-83 Bd de l'Hôpital, 75651, Paris Cedex 13, France.
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Proposed caudal appendage classification system; spinal cord tethering associated with sacrococcygeal eversion. Childs Nerv Syst 2017; 33:69-89. [PMID: 27497702 DOI: 10.1007/s00381-016-3208-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 07/26/2016] [Indexed: 10/21/2022]
Abstract
INTRODUCTION The most commonly used classification system for caudal appendages (aka human tails) dates from the 1980s and classifies appendages (tails) as either true tails or pseudotails. Advances in neuroimaging since the 1980s, however, as well as an ever-increasing number of reported cases, have made this system outdated. Sacrococcygeal eversion is a condition in which the distal sacral and coccygeal vertebrae are curved in a retroverted rather than anteverted direction. It can give rise to one type of caudal appendage. Sacrococcygeal eversion has never been associated with spinal cord tethering in any previously published reports. METHODS We reviewed all cases of caudal appendage encountered by pediatric neurosurgeons at Children's Hospital Colorado since 2000 in which the appendage would be classified as a true tail by the most commonly used system mentioned above. We also reviewed cases of sacrococcygeal eversion encountered since 2000 by the same group of pediatric neurosurgeons. We searched the hospital electronic medical record system for additional appendages using the terms "caudal appendage" and "persistent human tail." RESULTS We found 9 "true" tails (as classified by the most commonly used system). All 9 were associated with tethering or possible tethering of the spinal cord and 6 were associated with a low-lying conus medullaris. There were 8 cases of sacrococcygeal eversion, including 2 associated with Apert or Pfeiffer syndrome and fibroblast growth factor receptor 2 (FGFR2) mutations; these have previously been reported. There was a single case of sacrococcygeal eversion associated with Goldenhar or Turner syndrome; the former was associated with a potentially tethering lesion. Four cases of sacrococcygeal eversion not associated with any known syndrome were also found; two of these were associated with tethering or potentially tethering lesions. CONCLUSIONS Most so-called true tails are likely cutaneous markers for spinal dysraphism and spinal cord tethering and are not remnants of the embryonic human tail. Sacrococcygeal eversion can be associated with spinal cord tethering. Based on our cases, and on review of the literature, we devised a five-category classification system for caudal appendages: (1) soft-tissue caudal appendages, (2) bony caudal appendages, (3) bony caudal prominences, (4) true tails, and (5) "other" caudal appendages.
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Abstract
A patient with lipomyelomeningocele (known in utero) presented for MRI characterization prior to surgical procedure at three months of age. Cross-sectional imaging revealed a spinal dysraphism of the lower lumbar spine, with a posterior spinal defect spanning L4 to S2 subcutaneous fat intrusion, and distal spinal cord extrusion. An osseous excrescence was also appreciated, articulating with the left iliac bone. This case demonstrates the youngest known lipomyelomeningocele with accessory limb and the abnormal growth of multiple tissue types at the site of spinal dysraphism-a potential consequence of dedifferentiated cell proliferation originating from a secondary neural tube defect or rachipagus parasitic twinning.
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