1.Optical Coherence Tomographic Finding in a Case of Macular Coloboma.
Joo Youn OH ; Young Suk YU ; Jeong Min HWANG ; Kyu Hyung PARK
Korean Journal of Ophthalmology 2007;21(3):175-177
PURPOSE: To report the optical coherence tomography (OCT) findings in a patient with unilateral macular coloboma. METHODS: A 12-year-old male was presented with macular coloboma in the left eye. The optical coherence tomography was performed with fluorescein angiography (FA). RESULTS: The OCT revealed the crater-like depression in the macula, demonstrating atrophic neurosensory retina, and an absence of retinal pigment epithelium and choroid in the lesion. FA showed hypofluorescence corresponding to the size of the lesion in both early and late frames without leakage of dye at any stage. CONCLUSIONS: The OCT can be beneficial to confirm the diagnosis of macular coloboma.
Child
;
Coloboma/*diagnosis
;
Fluorescein Angiography
;
Humans
;
Macula Lutea/*abnormalities
;
Male
;
*Tomography, Optical Coherence/standards
2.A Case of Bilateral Choanal Atresia without Stenting.
Dong Gun LEE ; Sang Min KIM ; Chan Eun WE ; Yong Wan KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2016;59(11):787-791
Bilateral choanal atresia is a rare disorder characterized by bilateral obstruction of the posterior end of the nasal cavity. It can be present in isolation or associated with multiple disorders such as coloboma, heart defect, choanal atresia, retarded growth, genital hypoplasia, ear abnormalities (CHARGE) syndrome. Because congenital bilateral choanal atresia presents as respiratory distress at birth, immediate diagnosis and adequate treatment is required. Traditionally, using stents was a part of the postoperative treatment to provide a low rate of restenosis but recently it is controversial. Currently nasal endoscopic approach is mainly used with or without stenting. We report a case of CHARGE syndrome with bilateral choanal atresia treated by transnasal endoscopic approach without stenting.
CHARGE Syndrome
;
Choanal Atresia*
;
Coloboma
;
Diagnosis
;
Ear
;
Heart
;
Nasal Cavity
;
Parturition
;
Stents*
3.Identification of a novel mutation in the CHD7 gene in a patient with CHARGE syndrome.
Yeonkyung KIM ; Ho Seok LEE ; Jung Seok YU ; Kangmo AHN ; Chang Seok KI ; Jihyun KIM
Korean Journal of Pediatrics 2014;57(1):46-49
CHARGE syndrome has been estimated to occur in 1:10,000 births worldwide and shows various clinical manifestations. It is a genetic disorder characterized by a specific and a recognizable pattern of anomalies. The major clinical features are ocular coloboma, heart malformations, atresia of the choanae, growth retardation, genital hypoplasia, and ear abnormalities. The chromodomain helicase DNA-binding protein 7 (CHD7) gene, located on chromosome 8q12.1, causes CHARGE syndrome. The CHD7 protein is an adenosine triphosphate (ATP)-dependent chromatin remodeling protein. A total of 67% of patients clinically diagnosed with CHARGE syndrome have CHD7 mutations. Five hundred twenty-eight pathogenic and unique CHD7 alterations have been identified so far. We describe a patient with a CHARGE syndrome diagnosis who carried a novel de novo mutation, a c.3896T>C (p. leu1299Pro) missense mutation, in the CHD7 gene. This finding will provide more information for genetic counseling and expand our understanding of the pathogenesis and development of CHARGE syndrome.
Adenosine Triphosphate
;
CHARGE Syndrome*
;
Chromatin Assembly and Disassembly
;
Coloboma
;
Diagnosis
;
Ear
;
Genetic Counseling
;
Heart
;
Humans
;
Mutation, Missense
;
Nasopharynx
;
Parturition
4.Genetic analysis and prenatal diagnosis of a Chinese pedigree affected with microphthalmia/coloboma and skeletal dysplasia syndrome due to variant of MAB21L2 gene.
Wenqing TANG ; Zhouxian BAI ; Bo JIANG ; Xiangdong KONG
Chinese Journal of Medical Genetics 2022;39(8):854-858
OBJECTIVE:
To explore the genetic basis for a Chinese pedigree affected with microphthalmia.
METHODS:
Clinical data of the proband was collected. Whole exome sequencing (WES) was carried out to screen potential pathogenic variants in the proband. Candidate variant was verified by Sanger sequencing of the proband and his family members. Pathogenicity of the variant was predicted by searching the PubMed database and bioinformatic analysis. Sanger sequencing of amniotic fluid sample was carried out for prenatal diagnosis.
RESULTS:
The proband and his father were found to harbor a heterozygous c.151C>G (p.R51G) variant of the MAB21L2 gene. The same variant was not found in his mother and grandparents. Based on the guidelines of American College of Medical Genetics, the c.151C>G (p.R51G) variant was predicted as likely pathogenic.
CONCLUSION
The c.151C>G (p.R51G) variant of the MAB21L2 gene probably underlay the microphthalmia in the proband. Above finding has facilitated prenatal diagnosis for this pedigree.
China
;
Coloboma
;
Eye Proteins
;
Female
;
Humans
;
Intracellular Signaling Peptides and Proteins
;
Microphthalmos/genetics*
;
Mutation
;
Osteochondrodysplasias
;
Pedigree
;
Pregnancy
;
Prenatal Diagnosis
5.Unilateral Peters' Anomaly with Chorioretinal Coloboma in the Other Eye.
Dooyoung CHO ; Donggyu CHOI ; Wooho NAM
Korean Journal of Ophthalmology 2011;25(5):352-354
An 18-year-old man presented with poor vision in both eyes that had been present since birth. Central corneal opacity and inferior peripheral sclerocornea with iridocorneal adhesion were observed upon anterior segment examination of the left eye. A coloboma of the iris was observed in the patient's right eye, which manifested as a small notch in the inferior pupillary margin and cataract. Fundus examination of the right eye showed a large inferior chorioretinal coloboma involving the optic disc and macula. It is essential to examine the fundus in detail, if possible, in cases of Peters' anomaly, because these patients may have congenital anomalies such as chorioretinal coloboma.
*Abnormalities, Multiple
;
Adolescent
;
Anterior Eye Segment/abnormalities
;
Choroid/*abnormalities
;
Coloboma/*diagnosis
;
Corneal Opacity/*diagnosis
;
Diagnosis, Differential
;
Eye Abnormalities/*diagnosis
;
Humans
;
Male
;
Microscopy, Acoustic
;
Optic Nerve/abnormalities
;
Retina/*abnormalities
6.Unilateral Peters' Anomaly with Chorioretinal Coloboma in the Other Eye.
Dooyoung CHO ; Donggyu CHOI ; Wooho NAM
Korean Journal of Ophthalmology 2011;25(5):352-354
An 18-year-old man presented with poor vision in both eyes that had been present since birth. Central corneal opacity and inferior peripheral sclerocornea with iridocorneal adhesion were observed upon anterior segment examination of the left eye. A coloboma of the iris was observed in the patient's right eye, which manifested as a small notch in the inferior pupillary margin and cataract. Fundus examination of the right eye showed a large inferior chorioretinal coloboma involving the optic disc and macula. It is essential to examine the fundus in detail, if possible, in cases of Peters' anomaly, because these patients may have congenital anomalies such as chorioretinal coloboma.
*Abnormalities, Multiple
;
Adolescent
;
Anterior Eye Segment/abnormalities
;
Choroid/*abnormalities
;
Coloboma/*diagnosis
;
Corneal Opacity/*diagnosis
;
Diagnosis, Differential
;
Eye Abnormalities/*diagnosis
;
Humans
;
Male
;
Microscopy, Acoustic
;
Optic Nerve/abnormalities
;
Retina/*abnormalities
7.A Case of Chorioretinal Coloboma in a Patient with Achondroplasia.
Woong Sun YOO ; Yeon Jung PARK ; Ji Myung YOO
Korean Journal of Ophthalmology 2010;24(5):302-305
Achondroplasia is a congenital disorder resulting from a specific disturbance in endochondral bone formation. The ophthalmic features reportedly associated with achondroplasia are telecanthus, exotropia, inferior oblique overaction, angle anomalies and cone-rod dystrophy. This is first report of chorioretinal coloboma in achondroplasia. An 8-year-old female was diagnosed with a developmental delay, known as achondroplasia, seven months after birth. Upon her initial visit, visual acuity was 0.3 in both eyes. The patient had telecanthus but normal ocular motility. Findings were normal upon anterior segment examination. Fundus examination of both eyes revealed about 1,500 microm sized chorioretinal coloboma inferior to the optic nerve head. Upon fluorescent angiography, there was chorioretinal coloboma without any other lesions. Afterward, there was no change in the fundus lesion, and best corrected visual acuity was 0.6 in both eyes. Chorioretinal coloboma is associated with choroidal and retinal detachment. As chorioretinal coloboma and achondroplasia are developmental disorders in the embryonic stage, early detection and regular ophthalmologic examination would be essential in patients with achondroplasia.
Achondroplasia/*complications/diagnosis
;
Child
;
Choroid/*abnormalities
;
Choroid Diseases/*complications/diagnosis
;
Coloboma/*complications/diagnosis
;
Female
;
Humans
;
Ophthalmoscopes
;
Tomography, Optical Coherence
;
Visual Acuity
8.A Case of Retinal Detachment in Colobomatous Macrophthalmos With Microcornea Syndrome.
Hyun Kyung SEUNG ; Ha Kyoung KIM ; Woo Ho NAM
Korean Journal of Ophthalmology 2009;23(4):312-314
We report a rare case of retinal detachment in colobomatous macrophthalmos with microcornea syndrome. A 25-year-old female who had suffered from poor vision in her left eye since early childhood and high myopia in her right eye (-11 D) visited our clinic because of a sudden deterioration of vision. Examination of the anterior segment showed microcornea with coloboma of the inferior pupil margin in the left iris. Fundus examination of the left eye revealed an inferior choroidal coloboma extending from the optic disc and macula. The patient also had total bullous retinal detachment. Pars plana vitrectomy with silicone oil tamponade was performed, and the retina was reattached. In the very rare condition of colobomatous macropthalmos with microcornea, retinal detachment may develop. Pars plana vitrectomy with additional silicone oil tamponade may be performed to treat this condition.
Adult
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Choroid/*abnormalities
;
Coloboma/*complications/diagnosis
;
Cornea/*abnormalities
;
Female
;
Follow-Up Studies
;
Humans
;
Retinal Detachment/diagnosis/*etiology/surgery
;
Syndrome
;
Vitrectomy/methods
9.Clinical characteristics of CHARGE syndrome.
Korean Journal of Ophthalmology 1998;12(2):130-134
CHARGE syndrome, first described by Pagon, was named for its six major clinical features. They are: coloboma of the eye, heart defects, atresia of the choanae, retarded growth and development including CNS anomalies, genital hypoplasia and/or urinary tract anomalies, and ear anomalies and/or hearing loss. We experienced three cases of CHARGE syndrome who displayed ocular coloboma, heart defects, retarded growth and development, and external ear anomalies, and we also review the previously reported literature concerning CHARGE syndrome.
Abnormalities, Multiple*/genetics
;
Abnormalities, Multiple*/diagnosis
;
Brain/abnormalities*
;
Case Report
;
Child, Preschool
;
Choroid/abnormalities*
;
Coloboma/genetics
;
Coloboma/diagnosis*
;
Ear, External/abnormalities
;
Entropion/genetics
;
Entropion/diagnosis
;
Exotropia/genetics
;
Exotropia/diagnosis
;
Exotropia/congenital
;
Facial Paralysis/genetics
;
Facial Paralysis/congenital
;
Female
;
Heart Defects, Congenital/genetics
;
Heart Defects, Congenital/diagnosis*
;
Human
;
Infant
;
Karyotyping
;
Male
;
Mandible/abnormalities*
;
Retina/abnormalities*
;
Syndrome
10.A Case of Congenital Coloboma of Iris, Choroid and Optic Nerve In Both Eyes.
Journal of the Korean Ophthalmological Society 1966;7(1):27-30
A case of congenital coloboma of Iris and Choroid in both eyes and associated with optic nurve in left eye, who was 36 years old labor man, is reported, and also the author attempted to survey the embryological literatures for its original causes and heredity. This case was typical form without persistent pupillary membrane or lens change, and was not hereditary nature.
Adolescent
;
Adult
;
Blindness*
;
Choroid*
;
Coloboma*
;
Diagnosis
;
Female
;
Hemianopsia*
;
Heredity
;
Humans
;
Iris*
;
Membranes
;
Military Personnel
;
Optic Nerve*
;
Paragonimiasis*
;
Skin Tests
;
Skull
;
Visual Fields
;
Young Adult