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Results for “MANDIBULOFACIAL DYSOSTOSIS”

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Treacher Collins syndrome and achalasia.

Achalasia is often a familial disease and may be inherited in association with other familial defects. I report a patient born with a familial facial dysostosis, Treacher Collins syndrome, who also has achalasia to propose that these two defects are associated familial disorders in this patient.

Adult↗

Nager acrofacial dysostosis: male-to-male transmission in 2 families.

We describe 2 unrelated families with male-to-male transmission of Nager syndrome. All 5 affected individuals have moderate expression of the phenotype. One affected boy also has Hirschsprung disease. Although Nager acrofacial dysostosis usually occurs sporadically, both recessive and dominant inheritance have been suggested on the basis of reported familial cases. The 2 families described here with father-to-son transmission strongly support the hypothesis that some cases of Nager acrofacial dysostosis occur in individuals who are heterozygous for dominantly expressed, autosomal mutations.

Abnormalities, Multiple↗

[Musculoskeletal connections. Study of two cases of oto-mandibular dysplasia].

The current genetic data stress the importance of musculo-skeletal connections in the development of a coherent system connecting the tendons and aponeurosis muscles with the osseous parts. The observations in tomodensitometry of musculo-skeletal connections in otomandibular dysostosis make it possible qualitatively to observe the development of the muscles and their functions.

Adolescent↗

Cranio-facial dysmorphism: experimental study in the mouse, clinical applications.

To obtain a better understanding of mandibulo-facial dysostosis and hemicraniofacial microsomia in man, the authors carried out a histologic and scanning electron microscope study of the facial malformations produced in mouse embryos by retinoic acid and methyl-triazene. The administration of 400 mg/kg 13 cis-retinoic acid (RA) to pregnant C57BL mice on day 9 of gestation produced anomalies of the cephalic extremity in the embryos resembling human mandibulo-facial dysostosis. The 64 embryos collected presented hypoplasia of the branchial arches or the snout in 79% of cases, auricular anomalies in 47% and ophthalmic anomalies in 12.5%. Fourteen NMRI mice on day 10.5 of gestation were treated with 1.5 mg (0.5 mg/kg) methyl-triazene (Methyl). The 126 embryos collected had developed a very high percentage of micromandibles and anomalies of both embryonic ears (94.6% to 100%). Finally, although the facial anomalies produced by retinoic acid resemble the human mandibulo-facial dysostosis syndrome, no correlation was found between hemicraniofacial microsomia and the administration of methyl-triazene.

Abnormalities, Drug-Induced↗

Hallermann-Streiff syndrome.

Blodi (1957) and François (1958) recognized this syndrome as a distinct entity differing from the mandibulo-facial dysostosis (Franceschetti's syndrome). Although there are approximately 60 cases reported in the literature, only very few cases have been obtained for histological study. A report of a case with ophthalmopathological examination is given.

Eye↗