Clinical DysmorphologyPub Date : 2025-07-01Epub Date: 2025-05-28DOI: 10.1097/MCD.0000000000000520
Aditi Nilesh Shirodkar, K A Akhil, Vivekananda Bhat, Hitesh Shah, Anju Shukla, Radhakrishnan Periyasamy
{"title":"Report of a novel UBA2 variant causing Aplasia Cutis Congenita with Ectrodactyly syndrome (ACCES) in an Indian family.","authors":"Aditi Nilesh Shirodkar, K A Akhil, Vivekananda Bhat, Hitesh Shah, Anju Shukla, Radhakrishnan Periyasamy","doi":"10.1097/MCD.0000000000000520","DOIUrl":"10.1097/MCD.0000000000000520","url":null,"abstract":"","PeriodicalId":50682,"journal":{"name":"Clinical Dysmorphology","volume":" ","pages":"102-106"},"PeriodicalIF":0.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7617595/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143617725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chitra Gangadaran Ramalingam, Jiin Ying Lim, Jeannette Goh, Sylvia Kam, Hai Yang Law, Nur Afiqah Binte Mohd Mislan, Ivy Ng, Terrence Gerard Sundram Thomas, Weng Khong Lim, Sandra Sylvia Mascarenhas, Saumya Shekhar Jamuar
{"title":"EBF3-related neurodevelopment disorder affecting an individual of Singaporean Arab and Malay origin: case report and review of the literature.","authors":"Chitra Gangadaran Ramalingam, Jiin Ying Lim, Jeannette Goh, Sylvia Kam, Hai Yang Law, Nur Afiqah Binte Mohd Mislan, Ivy Ng, Terrence Gerard Sundram Thomas, Weng Khong Lim, Sandra Sylvia Mascarenhas, Saumya Shekhar Jamuar","doi":"10.1097/MCD.0000000000000529","DOIUrl":"https://doi.org/10.1097/MCD.0000000000000529","url":null,"abstract":"","PeriodicalId":50682,"journal":{"name":"Clinical Dysmorphology","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144027246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mangalore S Shravya, Ankur Chaurasia, Katta M Girisha, Shalini S Nayak
{"title":"Biallelic variants in AGRN with recurrent pregnancy losses in a family with a fetal akinesia deformation sequence.","authors":"Mangalore S Shravya, Ankur Chaurasia, Katta M Girisha, Shalini S Nayak","doi":"10.1097/MCD.0000000000000517","DOIUrl":"10.1097/MCD.0000000000000517","url":null,"abstract":"<p><strong>Introduction: </strong>Agrin, encoded by AGRN, plays a vital role in the acetylcholine receptor clustering pathway, and any defects in this pathway are known to cause congenital myasthenic syndrome (CMS) 8 in early childhood with variable fatigable muscle weakness. The most severe or lethal form of CMS manifests as a fetal akinesia deformation sequence (FADS). To date, only one family has been reported with an association of null variants in AGRN and a lethal FADS.</p><p><strong>Methods: </strong>We identified a nonconsanguineous couple with recurrent pregnancy loss. Detailed phenotyping of fetuses was performed via perinatal autopsy. Genetic evaluation was performed along with split-read analysis to identify variants.</p><p><strong>Results: </strong>Perinatal phenotyping revealed an FADS in the family, and genomic testing identified novel null variants in AGRN. First, whole-exome sequencing revealed the maternally inherited heterozygous variant c.952+1_952+3del in AGRN in fetuses. Split-read analysis of the exome led to the identification of the paternally inherited second variant, a heterozygous deletion of 41.33 kb, encompassing exons 1 and 2 of AGRN.</p><p><strong>Conclusion: </strong>This study highlights the importance of incorporating split-read analysis in clinical practice and emphasizes the association of null variants in AGRN with the FADS. To the best of our knowledge, this is the second report explaining FADS and null variants in AGRN.</p>","PeriodicalId":50682,"journal":{"name":"Clinical Dysmorphology","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7617632/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142980567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nephrocalcinosis, distal renal tubular acidosis and skeletal abnormality in two siblings with ROGDI -related Kohlschütter-Tönz syndrome.","authors":"Gayatri Nerakh, Swetha Koneru, Prashanth Rao Dhareneni","doi":"10.1097/MCD.0000000000000509","DOIUrl":"10.1097/MCD.0000000000000509","url":null,"abstract":"<p><strong>Introduction: </strong>Kohlschütter-Tönz (KTS) is a rare autosomal recessive, genetically heterogeneous disorder characterized by a triad of early-onset seizures, global developmental delay or regression, and amelogenesis imperfecta of both temporary and permanent teeth. To date, 66 cases have been reported in the literature, of which 44 with genetic confirmation.</p><p><strong>Case report: </strong>Here we report the observation of sibling pairs in a family from a small village in India who presented with nephrocalcinosis, distal renal tubular acidosis, and skeletal abnormality. Nephrocalcinosis has only been reported once before in an individual affected with KTS.</p><p><strong>Results: </strong>Trio exome sequencing revealed a novel, homozygous, likely pathogenic variant, c.646-2_649del, in exon 9 of the ROGDI gene (NM_024589.3) in the first child. Sanger sequencing confirmed homozygosity in both children. Both parents are heterozygous carriers of the same variant.</p><p><strong>Conclusion: </strong>Further research needs to be done to identify the exact mechanism by which ROGDI -encoded protein deficiency leads to nephrocalcinosis and distal renal tubular acidosis.</p>","PeriodicalId":50682,"journal":{"name":"Clinical Dysmorphology","volume":" ","pages":"1-5"},"PeriodicalIF":0.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clinical DysmorphologyPub Date : 2025-01-01Epub Date: 2024-09-27DOI: 10.1097/MCD.0000000000000507
Pooja Motwani, Haseena Sait
{"title":"Immune dysregulation in a dysmorphic child with 6q23.3 deletion: a single case report.","authors":"Pooja Motwani, Haseena Sait","doi":"10.1097/MCD.0000000000000507","DOIUrl":"10.1097/MCD.0000000000000507","url":null,"abstract":"","PeriodicalId":50682,"journal":{"name":"Clinical Dysmorphology","volume":" ","pages":"10-13"},"PeriodicalIF":0.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clinical DysmorphologyPub Date : 2025-01-01Epub Date: 2024-09-20DOI: 10.1097/MCD.0000000000000508
Ayşe Burcu Doğan Ari, Özge Ağlamiş Şenel, Betül Siyah Bilgin, Esra Kiliç
{"title":"Targeted genetic testing approach in a case with characteristic clinical and radiographic findings of Roberts phocomelia syndrome.","authors":"Ayşe Burcu Doğan Ari, Özge Ağlamiş Şenel, Betül Siyah Bilgin, Esra Kiliç","doi":"10.1097/MCD.0000000000000508","DOIUrl":"10.1097/MCD.0000000000000508","url":null,"abstract":"","PeriodicalId":50682,"journal":{"name":"Clinical Dysmorphology","volume":" ","pages":"6-9"},"PeriodicalIF":0.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142331749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A girl with a de novo PPP2R5D W207R pathogenic variant was also born with an occipital encephalocele.","authors":"Eijun Seki, Takeshi Uehara, Mamiko Yamada, Toshiki Takenouchi, Noriko Aida, Kenjiro Kosaki, Kenji Kurosawa","doi":"10.1097/MCD.0000000000000514","DOIUrl":"https://doi.org/10.1097/MCD.0000000000000514","url":null,"abstract":"","PeriodicalId":50682,"journal":{"name":"Clinical Dysmorphology","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142980547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nagehan Bilgeç, Burcu Çalişkan, Saliha Yavuz Eravci, Ahmet Sami Güven, Hüseyin Çaksen
{"title":"Cerebellar infarction due to atlantoaxial subluxation in spondyloepimetaphyseal dysplasia-joint laxity type 1 case.","authors":"Nagehan Bilgeç, Burcu Çalişkan, Saliha Yavuz Eravci, Ahmet Sami Güven, Hüseyin Çaksen","doi":"10.1097/MCD.0000000000000512","DOIUrl":"https://doi.org/10.1097/MCD.0000000000000512","url":null,"abstract":"<p><strong>Introduction: </strong>Spondyloepimetaphyseal dysplasia with joint laxity type 1 (SEMD-JL1) is an extremely rare skeletal dysplasia belonging to a group of disorders called linkeropathies. It is characterized by skeletal and connective tissue abnormalities. Biallelic variants in genes encoding enzymes that synthesize the tetrasaccharide linker region of glycosaminoglycans lead to linkeropathies, which exhibit clinical and phenotypic features that overlap with each other. SEMD-JL1 results in impaired growth and short stature, along with increased joint flexibility leading to limb joint dislocations and progressive spinal deformity.</p><p><strong>Methods and result: </strong>Whole exome sequencing was performed on the patient's genomic DNA. A novel variant in the B3GALT6 gene was detected as homozygous. During the patient's follow-up, signs of cerebellar infarction was observed due to atlantoaxial subluxation. Posterior circulation ischemic strokes have not been described with SEMD-JL1 and it was the second case in the skeletal dysplasia group to develop posterior circulation ischemic stroke due to atlantoaxial luxation.</p><p><strong>Conclusion: </strong>Linkeropathies present with varying clinical manifestations and necessitate comprehensive genetic testing for accurate diagnosis of this complex patient group. Skeletal dysplasias, such as spondyloepimetaphyseal dysplasia, may be accompanied by atlantoaxial instability that can lead to serious spinal symptoms and even sudden death.</p>","PeriodicalId":50682,"journal":{"name":"Clinical Dysmorphology","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142980548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}