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Wiedemann-Rautenstrauch syndrome. A case report and review of the literature.

In 1977 Rautenstrauch and Snigula reported on two sisters with a previously undescribed, progeria-like syndrome. Two years later Wiedemann described two unrelated males with the same condition. Since than only a few published cases appeared in the literature. We had the opportunity to study a boy affected by this extremely rare condition. This boy was born after intrauterine growth retardation. At birth two natal teeth were present. OFC was normal despite apparent macrocephaly. During infancy a progeroid appearance was noted with sparse hair, prominent scalp veins, greatly widened anterior fontanelles, malar hypoplasia, and generalized lipoatrophy. The face was triangular with a small maxilla and a protuding chin, the eyes were low-set, the eyebrows and eyelashes were scanty. At the age of 3.5 years there was striking general deficiency of subcutaneous fatty tissue apart from accumulation of adipose tissue on the buttocks and flanks, growth was retarded, mental development was at the low borderline of normal. Cholesterolemia was at the upper range of normal, there was an increase of triglycerides: 3.31 mmol/L (Normal < 1 mmol/L). Other progeroid syndromes such as Hutchinson-Guilford, Berardinelli-Seip, De Barsy, leprechaunism, Cockayne and Hallerman-Streiff could be excluded as well as the CDG syndrome. This condition is most probably inherited as an autosomal recessive trait.

Abnormalities, Multiple↗

[Anomalies of the oral cavity in Mexican neonates].

The results of 1,200 physical oral cavity examinations in neonates born at the National Institute of Perinatology (INPer) are reported here, finding the frequency of occurrence of inclusion cysts, natal and neonatal teeth. We found that 46% (551 neonates) of those examined had inclusion cysts, among which the Bohn nodules were the most frequent (36 cases); a case of natal teeth was found as well as 30 cases of neonatal teeth. We emphasize the importance of these findings to both the pediatrician and the dentist since they constitute a frequent motive for visits during the perinatal period.

Dentigerous Cyst↗

Clinical, histologic and micro-radiographic study of natal, neonatal and pre-erupted teeth.

A clinical, histologic and microradiographic investigation of 62 natal, neonatal and otherwise pre-erupted teeth from 51 children is presented. Such a comprehensive material has not previously been reviewed. Of the 62 teeth, 59 were mandibular incisors. A hereditary factor could be demonstrated in 12 cases. Fifty-three teeth showed more or less pronounced enamel hypoplasia. The enamel had a normal prism structure and mineralization with the exception of 22 cases where the prism structure was absent in the cervical part of the enamel. The cervical and apical dentin was atubular and in developing teeth the dentin in these regions changed to an irregularly formed hard tissue of osteodentin character, in which enclosed cells could be observed. Developing teeth often had no cementum, and in those cases where acellular cementum could be observed it was thinner than normal. In four patients atypically located carious lesions occurred.

Child↗

Clinical and pathological features of pachyonychia congenita.

Pachyonychia congenita (PC) is a rare genodermatosis affecting the nails, skin, oral mucosae, larynx, hair, and teeth. Pathogenic mutations in keratins K6a or K16 are associated with the PC-1 phenotype whereas K6b and K17 mutations are associated with the PC-2 phenotype. Analysis of clinical, pathological, and genetic data from the literature and two research registries reveal that >97% of PC cases exhibit fingernail and toenail thickening, and painful plantar keratoderma. Prospective evaluation of 57 PC patients from 41 families revealed variable clinical findings: hyperhidrosis (79%), oral leukokeratosis (75%), follicular keratosis (65%), palmar keratoderma (60%), cutaneous cysts (35%), hoarseness or laryngeal involvement (16%), coarse or twisted hair (26%), early primary tooth loss (14%), and presence of natal or prenatal teeth (2%). Stratification of these data by keratin mutation confirmed the increased incidence of cyst formation and natal teeth among PC-2 patients, although cysts were more commonly seen in PC-1 than previously reported (25%-33%). Previously unreported clinical features of PC include development of painful oral and nipple lesions during breastfeeding, copious production of waxy material in ears, and inability to walk without an ambulatory aid (50%). Possible pathogenic mechanisms are discussed with respect to the clinicopathologic and genetic correlations observed.

Darier Disease↗

Neonatal sublingual traumatic ulceration (Riga-Fede disease): a case report.

Early eruption of primary teeth rarely occurs and is referred to as "natal or neonatal teeth". These teeth may cause some complications, including ulceration of the sublingual area, pain during suckling and future nutritional problems. A two-month-old infant suffering from sublingual area ulceration due to two neonatal teeth was examined. His teeth were extracted and healing of the ulcerated area was observed within the first week.

Humans↗

Neonatal sublingual traumatic ulceration (Riga-Fede disease): reports of cases.

Neonatal sublingual traumatic ulcerations (Riga-Fede disease) can present as mild to severe ulcerations. The associated pain can interfere with infant nursing and nutrition. The preferred, conservative treatment consists of smoothing rough incisal edges, or placing round smooth composites over the incisal edges. Acute ulcerations, and a need for definite, rapid healing, may require extraction of the neonatal teeth.

Female↗