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Ferraresso LFOT, Fagundes FAU, Padovese M, Singi P, Paiva MF, Inagaki-Nomura LT, Dezan-Garbelini CC, Boer FAC. Peripheral odontogenic fibroma in a child with Ellis-van Creveld syndrome: Case report. SPECIAL CARE IN DENTISTRY 2024; 44:103-108. [PMID: 37041105 DOI: 10.1111/scd.12855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 04/13/2023]
Abstract
INTRODUCTION Ellis-van Creveld (EVC) syndrome is an autosomal recessive disorder predominantly characterized by a disproportionate dwarfism, ectodermal dysplasia, postaxial polydactyly, and congenital heart malformations and pulmonary hypoplasia. OBJECTIVE In this article, we hereby present a case of a 6-year-old Brazilian boy with EVC syndrome who presented a rare oral lesion as well as a remarkable number of classical and uncommon oral and dental features. CASE REPORT Clinical and radiographic examination revealed multiple enamel hypoplasia, teeth agenesis, conical teeth, lower canine rotation, bilateral posterior crossbite, taurodontism of deciduous and permanent molars and delayed tooth eruption, dental caries, and absent vestibular sulcus. Additionally, a whitish lobulated nodule located in the alveolar ridge in the anterior region of the mandible was noted. Anatomopathological examination was compatible with the diagnosis of peripheral odontogenic fibroma (POF). In a 10-month clinical follow-up, no signs of recurrence were observed. CONCLUSION In view of the characteristic oral findings of EVC syndrome and the potential for recurrence of POF, the pediatric dentist plays an essential role in clinical follow-up, planning and preventive, and rehabilitative treatment.
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Affiliation(s)
| | | | - Mariella Padovese
- Department of Oral Medicine and Dentistry for Children, State University of Londrina, Londrina, PR, Brazil
| | - Paola Singi
- Department of Oral Medicine and Dentistry for Children, State University of Londrina, Londrina, PR, Brazil
| | - Mayra Frasson Paiva
- Department of Oral Medicine and Dentistry for Children, State University of Londrina, Londrina, PR, Brazil
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Microdeletion of 4p16.2 in Children: A Case Report and Literature Review. Case Rep Genet 2022; 2022:6253690. [PMID: 35437470 PMCID: PMC9013304 DOI: 10.1155/2022/6253690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/16/2022] [Accepted: 03/29/2022] [Indexed: 11/17/2022] Open
Abstract
Copy number variations (CNV) are thought to play an important role in causing human diseases, including congenital anomalies, psychiatric disorders, and intellectual disabilities. We report here a one-year-old boy presented to our clinic as developmental delay. He presented a birth weight of 4.5 kg, motor delay, mental retardation, mild hypertonia, and some dysmorphic features (mild frontal bossing, hypertelorism, epicanthus, concave nasal ridge, slightly sparse hair, short hands, and mild nail dysplasia). The brain MRI indicated brain abnormalities; the Gross Motor Function Measure-66 score was 23.37; the Gesell test result showed the development quotient was 50, suggesting mental retardation. Chromosomal microarray analysis showed an approximately 97 kb microdeletion at 4p16.2 (4p16.2 CNV), including part of EVC and EVC2 genes, which were associated with Ellis-van Creveld syndrome (EvC) and Weyers acrofacial dysostosis (WAD). This report suggests 4p16.2 microdeletion may be associated with multiple developmental abnormalities, including motor delay and mental retardation.
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Alimohamed MZ, Mwakilili AD, Mbwanji K, Manji ZK, Kaywang F, Mwaikono KS, Adolf I, Makani J, Hamel B, Masimirembwa C, Ishengoma DS, Nkya S. Inauguration of the Tanzania Society of Human Genetics: Biomedical Research in Tanzania with Emphasis on Human Genetics and Genomics. Am J Trop Med Hyg 2020; 104:474-477. [PMID: 33350369 DOI: 10.4269/ajtmh.20-0861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 11/16/2020] [Indexed: 11/07/2022] Open
Abstract
Human genetics research and applications are rapidly growing areas in health innovations and services. African populations are reported to be highly diverse and carry the greatest number of variants per genome. Exploring these variants is key to realize the genomic medicine initiative. However, African populations are grossly underrepresented in various genomic databases, which has alerted scientists to address this issue with urgency. In Tanzania, human genetics research and services are conducted in different institutions on both communicable and noncommunicable diseases. However, there is poor coordination of the research activities, often leading to limited application of the research findings and poor utilization of available resources. In addition, contributions from Tanzanian human genetics research and services are not fully communicated to the government, national, and international communities. To address this scientific gap, the Tanzania Society of Human Genetics (TSHG) has been formed to bring together all stakeholders of human genetics activities in Tanzania and to formally bring Tanzania as a member to the African Society of Human Genetics. This article describes the inauguration event of the TSHG, which took place in November 2019. It provides a justification for its establishment and discusses presentations from invited speakers who took part in the inauguration of the TSHG.
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Affiliation(s)
- Mohamed Zahir Alimohamed
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.,Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar-es-Salaam, Tanzania.,Sickle Cell Program, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Aneth David Mwakilili
- Plant Protection Department, Swedish University of Agricultural Sciences, Alnarp, Sweden.,Department of Molecular Biology and Biotechnology, University of Dar es Salaam, Dar es Salaam, Tanzania
| | | | - Zainab Karim Manji
- Department of Clinical Nursing, School of Nursing, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Frida Kaywang
- Sickle Cell Program, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Kilaza Samson Mwaikono
- Department of Science and Laboratory Technology, Dar es Salaam Institute of Technology, Dar es Salaam, Tanzania
| | - Ismael Adolf
- Mbeya College of Health and Allied Sciences, University of Dar es Salaam, Mbeya, Tanzania
| | - Julie Makani
- Sickle Cell Program, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.,Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar-es-Salaam, Tanzania
| | - Ben Hamel
- Kilimanjaro Christian Medical University College, Moshi, Tanzania.,Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Collen Masimirembwa
- African Institute of Biomedical Science and Technology, Wilkins Hospital, Harare, Zimbabwe
| | - Deus Simon Ishengoma
- Harvard T. H. Chan School of Public Health, Harvard University, Boston, Massachusetts.,Faculty of Pharmaceutical Sciences, Monash University, Melbourne, Australia.,National Institute for Medical Research, Dar es Salaam, Tanzania
| | - Siana Nkya
- Dar es Salaam University College of Education, UDSM, Dar es Salaam, Tanzania.,Sickle Cell Program, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.,Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar-es-Salaam, Tanzania
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