• Title/Summary/Keyword: Hypoplasia

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Cleidocranial dysplasia : a case report (쇄골두개이골증의 증례)

  • Kim Jae-Duk;Lee Chang-Yul;You Choong-Hyun
    • Imaging Science in Dentistry
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    • v.34 no.1
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    • pp.55-59
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    • 2004
  • Cleidocranial dysplasia is a rare and autosomal dominent disorder characterized by aplasia or hypoplasia of the clavicles, an open fontanelle, dental abnormalities, and short stature, A 17-year-old female who presented with short stature and subsequent delay in eruption of permanent teeth is described. she showed the abnormal hypermobility of the shoulder, ocular hypertelorism and concave nasal bridge. Radiographs revealed the underdeveloped maxilla, defect of the cranium in the fontanelle region, and aplasia of the clavicles. Characteristically, panoramic view revealed near parallel-sided borders of the ascending ramus and downward curvature of the zygomatic arch with hypoplasia. The prolonged retention of deciduous teeth with delayed eruption of permanent teeth and multiple embedded supernumerary teeth were striking. Radiographic and clinical investigations revealed Cleidocranial dysplasia.

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Oral findings and dental management of a patient with Moebius syndrome: a case report

  • Lee, Eunkyoung;Kim, Youngjin;Kim, Hyunjung;Nam, Soonhyeun
    • The Journal of Korea Assosiation for Disability and Oral Health
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    • v.10 no.2
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    • pp.101-105
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    • 2014
  • Moebius syndrome is a rare, congenital neurological disease involving facial paralysis and limitation of eye movements. It results from maldevelopment of the sixth and seventh cranial nerves. Dental features of this syndrome include micrognathia, microstomia, tongue deformity, cleft palate, hypoplasia of the teeth, and congenital missing teeth. A 7-year-old female with Moebius syndrome was referred from a local dental clinic for caries treatment. She presented with facial paralysis and microstomia. Oral findings included multiple caries with enamel hypoplasia, congenital missing teeth, and tongue deformity. Dental treatments including restorative and preventive procedures were performed. Oral findings and management aspects of Moebius syndrome for this case are discussed. Early evaluation and multidisciplinary care are needed for children with Moebius syndrome.

Histopathological observation on the uterus and ovary of rats and mice treated with Ivermectin (Ivermectin을 투여한 rat와 mouse의 자궁 및 난소에 대한 병리조직학적 관찰)

  • Cho, Yoo-joung;Lee, Cha-soo
    • Korean Journal of Veterinary Research
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    • v.36 no.2
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    • pp.429-440
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    • 1996
  • In order to know morphological changes on the female genital organs by Ivermectin(IVM) administration, the histopathological observation was carried out in the organs of rat and mouse treated with the overdose of IVM. In the microscopical findings of the uterus, there were many mitotic figures, epithelial hyperplasia and papillary foldings in the endometrial surface. The increased prevalance of uterine glands, uterine epithelia and glands hyperplasia were markedly presented on diverse patterns adenoma-like structure and single nodular or multiple polyp-like adenoma. In ovary, primary and mature follicles were decreased in number, and hypoplasia of ovarian follicles, atretic follicles, follicular cysts and ovarian atropy were observed. It was considered that IVM administration resulted in follicular hypoplasia and atropy of ovary, and hyperplasia of uterine gland and endometrial surface epithelium might be transformed to neoplasia of glandular structures.

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A Case of 21-Monosomy with Holoprosencephaly(Semilobar Type) (Holoprosencephaly를 동반한 21-Monosomy 1례)

  • Lee, So Young;Cho, Sung Min
    • Clinical and Experimental Pediatrics
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    • v.46 no.8
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    • pp.831-835
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    • 2003
  • Holoprosencephaly of unknown definite causes, has been associated with several chromosome abnormalities involving the autosomes and the sex chromosomes. The most commonly reported associations include dup(3p), del(7q), deletions of chromosome 13, trisomy 13, trisomy 18, and triploidy. In previously reported cases in Korea, none were associated with chromosome 21 anomalies. In conclusion, we reported the first case of holoprosencephaly(semilobar type) associated with pure monosomy 21. We experienced a semilobar type holoprosencephaly with monosomy 21 in a neonate who had multiple congenital anomalies, including an abnormal face, a small thorax with widely spaced hypoplastic nipples and nail hypoplasia, lung hypoplasia with severe scoliosis and cardiac abnormalities. Chromosomal analysis revealed a 45, XY, -21.

Application of 3D Simulation Surgery to Orthognathic Surgery of Hemimandibular Hypoplasia

  • Park, Jin Hoo;Jung, Young-Soo;Kwon, Sun-Mo;Lim, Jae-Seok;Jung, Hwi-Dong
    • Journal of International Society for Simulation Surgery
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    • v.3 no.2
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    • pp.69-73
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    • 2016
  • Traditionally 2D cephalometric analysis has been used for diagnosis and treatment of maxillofacial deformities. However, 2D has some limitations in diagnosis and treatment planning especially facial asymmetry cases. The most weakness of 2D is overlapping and unpredictability. Today 3D treatment tools are used by many maxillofacial surgeons. 3D treatment tools can show ungarbled facial anatomy and do virtual surgery. The aim of this report is to present usefulness of using 3D analysis and virtual orthognathic surgery for severe facial asymmetry patients.

Classical oral manifestations of Dyke-Davidoff-Masson syndrome: a case report with review of the literature

  • Kalaskar, Ritesh;Kalaskar, Ashita Ritesh
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.44 no.4
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    • pp.198-203
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    • 2018
  • Dyke-Davidoff-Masson syndrome is a non-inherited rare condition that presents during childhood and is characterized by seizures, hemiplegia, mental retardation, cerebral hemiatrophy, calvarial thickening, and hyperpneumatization of the frontal sinuses. The present article highlights a case of a 12-year-old male child with additional clinical findings of $caf{\acute{e}}$-au-late pigmentation and ocular lipodermoid. This is the first case report of DykeDavidoff-Masson syndrome to describe oral manifestations, such as unilateral delayed eruption of teeth, hypoplasia, and taurodontism, which could be unique and characteristic of this condition. Oral health care providers and physicians should be aware of these oral observations as dental referrals could warrant early dental prophylactic care and can be useful in diagnosing the possible time of injury and type of Dyke-Davidoff-Masson syndrome.

Lack of Myelination in the Anterior Limbs of the Internal Capsule Associated with Cri-du-Chat Syndrome: Case Report

  • Lee, Hyo Jin;You, Sun Kyoung;Lee, So Mi;Cho, Hyun-Hae
    • Investigative Magnetic Resonance Imaging
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    • v.19 no.2
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    • pp.114-116
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    • 2015
  • A 21-month-old girl with cri-du-chat syndrome in conjunction with developmental delay underwent brain magnetic resonance imaging (MRI). The MRI showed hypoplasia of the brain stem, a normal cerebellum, thinning of the corpus callosum, and a lack of myelination in both anterior limbs of the internal capsule. She also had neonatal bilateral subependymal cysts. We believe that the symmetrical lack of myelination in both anterior limbs of the internal capsule could be a diagnostic clue of cri-du-chat syndrome.

A Case of Microtia (선천성 외이기형)

  • 김세훈;원상희;황명순;한주호;김선우
    • Proceedings of the KOR-BRONCHOESO Conference
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    • 1981.05a
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    • pp.40.2-40
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    • 1981
  • The deformities of the auricle is rare and classified roughly into two categories as "Hyperplasia and Hypoplasia". Microtia occurs about once in every 6000 births and is twice as frequent in males as in females and the unilateral to bilateral ratio is roughly 8 : 1. Significant malformation of the auricle frequently involves the external auditory canal and the contents of the middle ear. Recently, the authors experienced a case of hypoplasia of the superior third of the right auricle of 24 year old male, with neither hearing impairment nor any other associated defect, who was surgically corrected by rotation flaps through post-auricular incision.

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