2011
DOI: 10.1590/s1516-31802011000600010
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New report of two patients with mosaic trisomy 9 presenting unusual features and longer survival

Abstract: Novo relato de dois pacientes com a trissomia do 9 em mosaico apresentando achados não usuais e uma sobrevida prolongada . Additional cytogenetic assessment of the skin showed normal results. The second patient was a two-year-old girl who was initially assessed at five months of age, when she presented weight of 5.3 kg (< P3), height of 61.5 cm (P2-P10), head circumference of 40.5 cm (P25), sparse hair, micrognathia, right ear with overfolded helix and preauricular pit, triphalangeal thumbs and sacral dimple. … Show more

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Cited by 13 publications
(17 citation statements)
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“…One patient (Patient 2) had marked facial asymmetry similar to that observed in hemifacial microsomia (oculoauriculovertebral spectrum, OAVS). Facial asymmetry has previously been described in two cases of mosaic trisomy 9 [Wilson and Barr, ; Zen et al, ], but mosaicism was not suspected clinically in either of our patients.…”
Section: Discussioncontrasting
confidence: 38%
“…One patient (Patient 2) had marked facial asymmetry similar to that observed in hemifacial microsomia (oculoauriculovertebral spectrum, OAVS). Facial asymmetry has previously been described in two cases of mosaic trisomy 9 [Wilson and Barr, ; Zen et al, ], but mosaicism was not suspected clinically in either of our patients.…”
Section: Discussioncontrasting
confidence: 38%
“…Gastrointestinal abnormalities are also infrequent 7,8 . Motor and mental retardation are the most common neurological symptom in this syndrome.…”
Section: Discussionmentioning
confidence: 99%
“…On rare occasions, a T9 pregnancy may progress to the later stages of pregnancy [3]. Mosaic T9 has been shown to have significant phenotypic variability and less severe symptoms, which may be the reason of longer survival period, some even to the adult stage [8].…”
Section: Discussionmentioning
confidence: 99%