• Title/Summary/Keyword: Autosomal dominant disorder

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Familial Juvenile Hyperuricemic Nephropathy and Uromodulin Gene Mutation

  • Lee, Young-Ki;Lee, Dong Hun;Noh, Jung-Woo
    • Journal of Genetic Medicine
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    • v.10 no.1
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    • pp.7-12
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    • 2013
  • Familial Juvenile hyperuricemic nephropathy (FJHN) is a rare autosomal dominant disorder, characterized by early onset of hyperuricemia, gout and progressive kidney disease. Hyperuricemia prior to renal impairment and decreased fractional excretion of uric acid are hallmarks of FJHN. Renal dysfunction gradually appears early in life and results in end-stage renal disease usually between the ages of 20 and 70 years. FJHN is mostly caused by mutations in the uromodulin gene located at 16p12. The course of FJHN is highly variable. Treatment includes management for hyperuricemia, gout and progressive kidney disease. Individuals with gout have been usually treated with allopurinol. But controversy exists as to whether uric acid lowering therapy prevents the progression of chronic kidney disease.

Osteochondroma of the Distal Clavicle: A Rare Cause of Impingement and Biceps Tear of the Shoulder

  • Kim, Dong-Wan;Bae, Ki-Cheor;Son, Eun-Seok;Baek, Chung-Sin;Cho, Chul-Hyun
    • Clinics in Shoulder and Elbow
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    • v.21 no.3
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    • pp.158-161
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    • 2018
  • Hereditary multiple exostosis (HME) is an autosomal dominant disorder manifested by the presence of multiple osteochondromas. Although the lesions are benign in nature, exostoses are often associated with characteristic progressive skeletal deformity and displaying clinical symptoms such as mechanical irritation or impingement. We present the successful arthroscopic resection in a 24-year-old HME male with impingement syndrome and long head tendon tear of the biceps caused by osteochondroma arising from the distal clavicle.

Valve Sparing Aortic Root Replacement in Children with Loeys-Dietz Syndrome

  • Sim, Hyung-Tae;Seo, Dong Ju;Yu, Jeong Jin;Baek, Jae Suk;Goo, Hyn Woo;Park, Jeong-Jun
    • Journal of Chest Surgery
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    • v.48 no.4
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    • pp.272-276
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    • 2015
  • Loeys-Dietz syndrome (LDS) is an autosomal dominant connective tissue disorder that is characterized by aggressive arterial and aortic disease, often involving the formation of aortic aneurysms. We describe the cases of two children with LDS who were diagnosed with aortic root aneurysms and successfully treated by valve-sparing aortic root replacement (VSRR) with a Valsalva graft. VSRR is a safe and suitable operation for children that avoids prosthetic valve replacement.

Manifestation and treatment in a cleidocranial dysplasia patient with a RUNX2 (T420I) mutation

  • Lee, Chaky;Jung, Hee-sup;Baek, Jin-A;Leem, Dae Ho;Ko, Seung-O
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.37
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    • pp.41.1-41.6
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    • 2015
  • Cleidocranial dysplasia is an autosomal dominant heritable skeletal disorder. The characteristic features of cleidocranial dysplasia (CCD) may include hypoplasia of the clavicle, delayed closure of frontanelles, late tooth eruption, and other skeletal disorders. This case report describes clinical and radiographic manifestations at the age of 11 and 29 of a CCD patient, investigates the mutation of core-binding factor A1 (CBFA1) based on gene analysis, and illustrates successful oral reconstruction with fixed prosthesis and dental implant after the extraction of multiple teeth.

Cleidocranial dysplasia: a case report

  • Han Jin-Woo
    • Imaging Science in Dentistry
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    • v.35 no.4
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    • pp.225-229
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    • 2005
  • Cleidocranial dysplasia is a rare, autosomal dominant congenital disorder. A 12-year old female visited with chief complaint of unerupted permanent teeth. Also her father showed severe class III malocclusion. The extraoral radiography and computed tomography showed delayed closure of the cranial sutures and underdevelopment of maxilla, maxillary sinuses, and frontal sinus. Both clavicles were underdeveloped and thoracic rib cage was bell­shaped. Both zygomatic process appeared as hypoplastic feature. There were many unerupted permanent and supernumerary teeth in the maxilla and mandible. We examined location and number of the unerupted teeth using 3D CT. Finally we could conclude this case was cleidocranial dysplasia based on the clinico-radiologic findings.

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Basal cell nevus syndrome: 2 case reports (기저세포모반증훈군 두 증례)

  • Kim, Jae-Duk;Seo, Yo-Seob;Kim, Jin-Soo
    • Imaging Science in Dentistry
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    • v.38 no.2
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    • pp.109-115
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    • 2008
  • The basal cell nevus syndrome (BCNS) is an autosomal dominant disorder, characterized by basal cell carcinomas, odontogenic keratocysts and skeletal abnormalities. We experienced two cases that represented several characteristics of BCNS. Case 1: a thirty three year-old man visited CSU hospital. His radiographs showed four cystic lesions at both maxillary sinus and both mandibular angle, with bifid rib and ectopic calcification of falx cerebri. After marsupialization and enucleation, recurrent and newly developing tendency were found on his follow-up radiographs. Case 2: a seventeen year-old man had four large cystic lesions which were diagnosed as odontogenic keratocysts. He had craniofacial anomalies which included ectopic calcification and frontal bossing.

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A family with Townes-Brocks syndrome with congenital hypothyroidism and a novel mutation of the $SALL1$ gene

  • Choi, Won-Ik;Kim, Ji-Hye;Yoo, Han-Wook;Oh, Sung-Hee
    • Clinical and Experimental Pediatrics
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    • v.53 no.12
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    • pp.1018-1021
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    • 2010
  • Townes-Brocks syndrome (TBS) is a rare autosomal dominant congenital disorder caused by mutations in the $SALL1$ gene. Its signs and symptoms overlap with other genetic syndromes, including VACTERL association, Pendred syndrome, Baller-Gerold syndrome, and cat eye syndrome. Structural vertebral abnormalities, hypoplasia of the thumb, and radial bone abnormalities, which are not usually associated with TBS, help in the differential diagnosis of these syndromes. We report the case of a family whose members were diagnosed with TBS with congenital hypothyroidism and had a novel $SALL1$ gene mutation.

A case of hereditary hemorrhagic telangiectasia (유전성 출혈성 모세혈관 확장증 1례)

  • Lee, Young Seung;Kim, Seonguk;Kang, Eun Kyeong;Park, June Dong
    • Clinical and Experimental Pediatrics
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    • v.50 no.10
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    • pp.1018-1023
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    • 2007
  • Hereditary hemorrhagic telagiectasia (HHT), which is characterized by the classic triad of mucocutaneous telangiectases, arteriovenous malformations (AVMs) and inheritance, is an autosomal dominant disorder. The characteristic manifestations of HHT are all due to abnormalities of the vascular structure. This report deals with the case of a 14-year-old girl with typical features of HHT that include recurrent epistaxis, mucocutanous telangiectases, pulmonary and cerebral AVMs and a familial occurrence.

Bannayan-Riley-Ruvalcaba Syndrome in a Patient with a PTEN Mutation Identified by Chromosomal Microarray Analysis: A Case Report

  • Lee, Sun Hwa;Ryoo, Eell;Tchah, Hann
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.20 no.1
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    • pp.65-70
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    • 2017
  • Bannayan-Riley-Ruvalcaba syndrome (BRRS) is one of the phosphatase and tensin homolog hamartoma tumor syndrome with a PTEN gene mutation. It is a rare dominant autosomal disorder characterized by cutaneous lipomas, macrocephaly, intestinal polyps, and developmental delay. Diagnosing this syndrome is important, because it may represent the pediatric phenotype of Cowden syndrome, in which there is an increased risk for malignant tumors in children. Until now, the prevalence of BRRS is unknown. Several dozen cases have been reported in the medical literature, but no case has been reported in Korea. Here we report a case of a 19-year-old girl who was diagnosed with BRRS because of macrocephaly, intellectual disability, and intestinal polyps. Her mother had similar findings and a PTEN mutation. Neither patient had mutations detected by conventional mutation-detection techniques, but a PTEN gene deletion was demonstrated by chromosomal microarray analysis.

Anesthetic management of a patient with branchio-oto-renal syndrome

  • Tsukamoto, Masanori;Yokoyama, Takeshi
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.17 no.3
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    • pp.215-217
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    • 2017
  • Branchio-oto-renal syndrome (BOR) is a rare autosomal dominant disorder. The features include branchial cysts, hearing loss, ear malformation, preauricular pits, retrognathia, congenital heart disease, and renal abnormalities. However, anesthetic management of these patients has seldom been reported. We report a case in which general anesthesia was performed for dental treatment in a patient with BOR. Airway management, renal function, and hemodynamic changes can be of critical concern during anesthetic management. A 13-year-old girl diagnosed with BOR had severe right hearing loss, right external ear malformation, renal abnormalities, and postoperative patent ductus arteriosus (PDA). Dental extraction under general anesthesia was scheduled for a supernumerary tooth. The procedure was completed with sufficient urine volume, adequate airway management, and stable hemodynamics.