Cases reported "Syndrome"

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1/67. Rieger's syndrome: (oligodontia and primary mesodermal dysgenesis of the iris) clinical features and report of an isolated case.

    An 11-year-old female manifested bilateral prominent Schwalbe's line, iridal adhesions, displaced and irregular pupils. She had no evidence of juvenile glaucoma. The major nonocular finding in this patient was the congenital absence of her primary and permanent maxillary central and lateral incisors. Although missing or malformed teeth may occur in other conditions such as Down's syndrome, focal dermal hypoplasia syndrome, anhidrotic ectodermal dysplasia, chondroectodermal dysplasia, and incontinentia pigmenti, the clinician should include Rieger's syndrome in his differential diagnosis in patients with oligodontia in combination with malformation of the anterior chamber of the eye. Rieger's syndrome is a rare condition characterized by ocular and dental abnormalities, namely mesoectodermal dysgenesis of the iris and cornea of the eyes and hypodontia of the dentition. This report presents a sporadic case of Rieger's syndrome in an 11-year-old female and discusses the pertinent clinical features of this condition.
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keywords = hypodontia
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2/67. Hereditary hypodontia and onychorrhexis of the fingernails and toenail koilonychia: Witkop's tooth-and nail syndrome.

    The tooth-and-nail syndrome (Witkop's syndrome) is a rare autosomal dominant ectodermal dysplasia manifest by defects of the nail plates of the fingers and toes and hypodontia with normal hair and sweat gland function. We report a thirteen year-old girl who presented with marked longitudinal ridging of the nail plates of all ten fingers. The toenails were mildly ridged with koilonychia. Her mother's fingers were similarly affected to a lesser degree while her toenails appeared normal. Examination of the child's dentition revealed a hyperplastic frenulum and the absence of one of the usual four mandibular incisors. history provided by the mother described the maternal grandmother and maternal great aunt as having identical nail findings and the presence of only three lower incisors. hair examination was normal in the mother and child, and no history or findings of sweat gland dysfunction was present. This report describes familial hypodontia, fingernail onychorrhexis, and toenail koilonychia consistent with Witkop's syndrome.
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ranking = 6
keywords = hypodontia
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3/67. Witkop tooth and nail syndrome: report of two cases in a family.

    Tooth and nail syndrome, an autosomal dominant condition, is characterized by hypodontia and nail dysplasia. Mandibular incisors, second molars and maxillary canines are the most frequently missing teeth. Tooth shape may vary and conical and narrow crowns are common. Nail dysplasia affects fingernails and toenails and is often more severe in childhood. nails may be spoon-shaped, ridged, slow growing and easily broken. The clinical and radiographic features of a father and son presenting with this rare condition are described.
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keywords = hypodontia
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4/67. Familial choanal atresia with maxillary hypoplasia, prognathism, and hypodontia.

    We report on two sibs and a cousin with bilateral choanal atresia. At 2 months, one sib died of complications following surgical correction of her defects. We evaluated her brother and cousin at age 7 and 9 years, respectively. Both had a tall forehead, maxillary hypoplasia, prognathism, and absence of certain deciduous and permanent teeth. Psychomotor development was appropriate for age. Roentgenocephalometric analyses of several relatives showed that one grandfather of these children and two of the five uncles and aunts also had maxillary hypoplasia and/or prognathism. To our knowledge, this condition has not been described previously and may represent a newly recognized autosomal dominant condition with incomplete penetrance and variable expressivity caused by a defect of neural crest development.
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ranking = 4
keywords = hypodontia
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5/67. The KBG syndrome, characteristic dental findings: a case report.

    Short stature and developmental delay may be observed in many genetic conditions and well-defined syndromes. A 7-year-old girl presented with the non-specific findings of subtle dysmorphism, short stature and developmental delay. Although a genetic syndrome was suspected, a definitive diagnosis was not made until the dental findings of KBG syndrome were recognised, namely grossly enlarged maxillary permanent central incisors and hypodontia.
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keywords = hypodontia
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6/67. Cranioectodermal dysplasia: a new patient with an inapparent, subtle phenotype.

    Cranioectodermal dysplasia is a rare syndrome characterized by craniofacial and skeletal anomalies and ectodermal dysplasia. life-threatening associated conditions (i.e., kidney failure and abnormal regulation of the parathyroid-bone axis) can also develop. We report a patient whose features are suggestive of an inapparent, subtle phenotype of the syndrome. The patient is a 4-year-old girl with only dolichocephaly and clinodactyly; microdontia, hypodontia, and taurodontia (i.e., cone-shaped teeth); anteverted nares, full cheeks, and everted lower lip; epicanthal folds, hypertelorism and hyperopia; and corpus callosum hypoplasia. She has no rhizomelic limb shortening or hair abnormalities. In view of the rarity of the cranioectodermal dysplasias, the variability of the phenotype, and the uncertain outcome of some previously described patients, we believe this inapparent, subtle case should reported to enable better understanding and treatment of this rare syndrome.
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ranking = 1
keywords = hypodontia
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7/67. Van der Woude syndrome with mental retardation: case report.

    A report of a four and half-year old African patient with Van der Woude syndrome and mental retardation is reported. In addition to cleft lip/palate, hypodontia and lower lip pits; features consistent with Van der Woude syndrome, he manifested features consistent with growth and mental retardation. A genetic basis for these associated features can only be determined by detailed karyotype studies.
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ranking = 1
keywords = hypodontia
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8/67. Central odontogenic fibroma-like tumors, hypodontia, and enamel dysplasia: review of the literature and report of a case.

    A patient with multiple odontogenic fibroma-like tumors in the mandible and enamel dysplasia is presented, bringing the total number of cases reported in the literature to 3. In addition to these manifestations, this case had hypodontia. The absence of associated teeth, the size of the lesions, the lingual expansion, and the green-yellow polarization of collagen with Picrosirius stains supported the neoplastic nature of the central odontogenic fibroma-like tumors in the case presented. Laminated psammomatous deposits distinguished the tumors from the world health organization-type central odontogenic fibroma.
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ranking = 5
keywords = hypodontia
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9/67. The Kabuki syndrome: four patients with oral abnormalities.

    The aim of this paper is to report the oral signs and symptoms of four patients with Kabuki syndrome. All had oral abnormalities affecting the palate, teeth, and/or lips, including wide spacing between the teeth, screwdriver-shaped upper incisors, hypodontia, delayed tooth eruption, narrow spacing in the upper canine area, large pulp chambers of the upper incisors and permanent molars, external root resorption of the upper central incisors and permanent molars, a division of the lower third of the root canal in normally one-rooted teeth, tooth retention, retrognathia of the upper jaw, a high palate or cleft lip/palate, and microforms of lower lip fistula.
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ranking = 1
keywords = hypodontia
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10/67. Clinical manifestations of terminal osseous dysplasia and pigmentary defects in a young girl.

    Terminal osseous dysplasia and pigmentary defects is a rare X-linked dominant disorder with prenatal male lethality. Affected females display multiple systemic abnormalities such as limb deformities and pigmented lesions of the face and scalp. Phenotypic expression of the syndrome varies among the affected individuals. In this case report, we describe the syndromic dental and oral abnormalities in a female child aged 3 and 1/2 years. A widened bigonial width of the mandible and a brachyfacial pattern are observed. Intraoral findings include multiple frenulae, shallow mucobuccal fold, hypodontia, conical incisors, and other developmental structural defects.
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ranking = 1
keywords = hypodontia
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