dysgenesis


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

dysgenesis

 [dis-jen´ĕ-sis]
defective development; see also dysplasia and malformation.
gonadal dysgenesis
1. defective development of the gonads.
2. turner's syndrome and its variants.

dys·gen·e·sis

(dis-jen'ĕ-sis),
Defective development.
[dys- + G. genesis, generation]

dysgenesis

(dĭs-jĕn′ĭ-sĭs)
n.
Defective or abnormal development of an organ, especially of the gonads.

dys·gen·e·sis

, dysgenesia (dis-jen'ĕ-sis, -jĕ-nēzē-ă)
Defective development.
[dys- + G. genesis, generation]

dysgenesis

Any abnormality of development.

dys·gen·e·sis

, dysgenesia (dis-jen'ĕ-sis, -jĕ-nēzē-ă)
Defective development.
[dys- + G. genesis, generation]

Patient discussion about dysgenesis

Q. Is it a birth defect in children? I know about the causes of autism. Is it a birth defect in children?

A. it's not an easy answer i'm afraid...there are congenital differences, but no "birth defect" that we can detect. there's a good pdf file that gives a full explanation about it...i think you'll find it useful:
http://209.85.129.132/search?q=cache:U7PHTfTAZhYJ:www.nichd.nih.gov/publications/pubs/upload/autism_overview_2005.pdf+http://www.nichd.nih.gov/publications/pubs/upload/autism_overview_2005.pdf&hl=iw&ct=clnk&cd=1&gl=il

More discussions about dysgenesis
References in periodicals archive ?
The main differential diagnosis of PGD is mixed gonadal dysgenesis (MGD), one of the DSD associated with sex chromosome abnormalities [1].
Spinal segmental dysgenesis. South African Journal of Radiology 2009; 6: 29-32.
In utero exposure to di(n-butyl) phthalate and testicular dysgenesis: comparison of fetal and adult end points and their dose sensitivity.
Diagnosis of gonadal dysgenesis was made by the presence of asymmetrical gonads, mosaicism on chromosome analysis, no response to HCG stimulation or dysgenetic gonads on histology.
Mixed gonadal dysgenesis in a child with isodicentric Y chromosome: Does the relative proportion of the 45,X line really matter?
Head sonogram finding Percentage (N) Normal 93% (178) Arachnoid cyst 3% (5) Mineralizing Vasculopathy 1.1% (2) Dysgenesis of Corpus Callosum 0.6% (1) Frontal Echogenic Focus 0.6% (1) Increase Echogenicity on left 0.6% (1) cerebellar hemisphere
(3) Type 2 cysts may also be multiloculated, and communication between locules and ventricles may be difficult to visualize and exclude.2,3 The imaging triad AVID (Asymmetric Ventriculomegaly, Interhemispheric cyst, and Dysgenesis of the corpus callosum) has been proposed to aid with distinction from aqueductal stenosis and porencephaly.
The central nervous system symptoms of this syndrome are hypotonia, sensorineural hearing loss and corpus callosum dysgenesis or agenesis (1,4,7).
One of the main characteristics of Turner syndrome is low reproductive potential, which correlates with ovarian dysgenesis induced by monosomy X.
The sex chromosome DSD includes 45, X (Turner syndrome and variants), 47, XXY (Klinefelter syndrome and variants), 45, X/46, XY (mixed gonadal dysgenesis), and individuals with mosaic 46, XX/46, XY cell lines (1).
Lenz-Majewski Hyperostotic Dwarfism (LMHD) is an extremely rare congenital, sclerosing bone dysplasia that causes cranio-tubular hyperostosis, ectodermal dysplasia (cutis laxa and enamel hypoplasia), osseous dysgenesis of hands and feet with diaphyseal cortical thickening of tubular bones and intellectual disability.